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Finding the Fourth Proportional to 387,500.94, 581,262.41 and 107,018.19

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Solution

The fourth proportional to 387,500.94, 581,262.41 and 107,018.19 is: 160,530.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,500.94 : 581,262.41 = 107,018.19 : x
  2. Step 2: Convert to fraction form
    387,500.94/581,262.41 = 107,018.19/x
  3. Step 3: Cross multiply
    387,500.94x = 581,262.41 × 107,018.19
  4. Step 4: Simplify right side
    387,500.94x = 62,205,651,033.24
  5. Step 5: Solve for x
    x = 62,205,651,033.24/387,500.94
  6. Step 6: Final answer
    x = 160,530.32

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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.