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Finding the Fourth Proportional to 324,036.30, 486,054.45 and 257,114.10

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Solution

The fourth proportional to 324,036.30, 486,054.45 and 257,114.10 is: 385,671.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,036.30 : 486,054.45 = 257,114.10 : x
  2. Step 2: Convert to fraction form
    324,036.30/486,054.45 = 257,114.10/x
  3. Step 3: Cross multiply
    324,036.30x = 486,054.45 × 257,114.10
  4. Step 4: Simplify right side
    324,036.30x = 124,971,452,462.75
  5. Step 5: Solve for x
    x = 124,971,452,462.75/324,036.30
  6. Step 6: Final answer
    x = 385,671.15

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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.