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Finding the Fourth Proportional to 358,875.20, 539,479.20 and 307,553.60

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Solution

The fourth proportional to 358,875.20, 539,479.20 and 307,553.60 is: 462,330.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,875.20 : 539,479.20 = 307,553.60 : x
  2. Step 2: Convert to fraction form
    358,875.20/539,479.20 = 307,553.60/x
  3. Step 3: Cross multiply
    358,875.20x = 539,479.20 × 307,553.60
  4. Step 4: Simplify right side
    358,875.20x = 165,918,770,085.12
  5. Step 5: Solve for x
    x = 165,918,770,085.12/358,875.20
  6. Step 6: Final answer
    x = 462,330.00

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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.