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Finding the Fourth Proportional to 338,073.48, 507,126.60 and 278,800.92

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Solution

The fourth proportional to 338,073.48, 507,126.60 and 278,800.92 is: 418,214.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,073.48 : 507,126.60 = 278,800.92 : x
  2. Step 2: Convert to fraction form
    338,073.48/507,126.60 = 278,800.92/x
  3. Step 3: Cross multiply
    338,073.48x = 507,126.60 × 278,800.92
  4. Step 4: Simplify right side
    338,073.48x = 141,387,362,636.47
  5. Step 5: Solve for x
    x = 141,387,362,636.47/338,073.48
  6. Step 6: Final answer
    x = 418,214.89

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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.