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Finding the Fourth Proportional to 387,556.38, 581,345.51 and 107,073.63

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Solution

The fourth proportional to 387,556.38, 581,345.51 and 107,073.63 is: 160,613.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,556.38 : 581,345.51 = 107,073.63 : x
  2. Step 2: Convert to fraction form
    387,556.38/581,345.51 = 107,073.63/x
  3. Step 3: Cross multiply
    387,556.38x = 581,345.51 × 107,073.63
  4. Step 4: Simplify right side
    387,556.38x = 62,246,773,504.53
  5. Step 5: Solve for x
    x = 62,246,773,504.53/387,556.38
  6. Step 6: Final answer
    x = 160,613.47

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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.