Home / 612,150.20-918,225.30-257,046.20

Finding the Fourth Proportional to 612,150.20, 918,225.30 and 257,046.20

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Solution

The fourth proportional to 612,150.20, 918,225.30 and 257,046.20 is: 385,569.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,150.20 : 918,225.30 = 257,046.20 : x
  2. Step 2: Convert to fraction form
    612,150.20/918,225.30 = 257,046.20/x
  3. Step 3: Cross multiply
    612,150.20x = 918,225.30 × 257,046.20
  4. Step 4: Simplify right side
    612,150.20x = 236,026,324,108.86
  5. Step 5: Solve for x
    x = 236,026,324,108.86/612,150.20
  6. Step 6: Final answer
    x = 385,569.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.