Home / 461,430.20-692,145.30-212,112.20

Finding the Fourth Proportional to 461,430.20, 692,145.30 and 212,112.20

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Solution

The fourth proportional to 461,430.20, 692,145.30 and 212,112.20 is: 318,168.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,430.20 : 692,145.30 = 212,112.20 : x
  2. Step 2: Convert to fraction form
    461,430.20/692,145.30 = 212,112.20/x
  3. Step 3: Cross multiply
    461,430.20x = 692,145.30 × 212,112.20
  4. Step 4: Simplify right side
    461,430.20x = 146,812,462,302.66
  5. Step 5: Solve for x
    x = 146,812,462,302.66/461,430.20
  6. Step 6: Final answer
    x = 318,168.30

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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.