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Finding the Fourth Proportional to 387,756, 581,568.48 and 107,274.24

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Solution

The fourth proportional to 387,756, 581,568.48 and 107,274.24 is: 160,893.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,756 : 581,568.48 = 107,274.24 : x
  2. Step 2: Convert to fraction form
    387,756/581,568.48 = 107,274.24/x
  3. Step 3: Cross multiply
    387,756x = 581,568.48 × 107,274.24
  4. Step 4: Simplify right side
    387,756x = 62,387,316,699.96
  5. Step 5: Solve for x
    x = 62,387,316,699.96/387,756
  6. Step 6: Final answer
    x = 160,893.23

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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.