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Finding the Fourth Proportional to 387,477.77, 581,481.15 and 134,755.74

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Solution

The fourth proportional to 387,477.77, 581,481.15 and 134,755.74 is: 202,225.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,477.77 : 581,481.15 = 134,755.74 : x
  2. Step 2: Convert to fraction form
    387,477.77/581,481.15 = 134,755.74/x
  3. Step 3: Cross multiply
    387,477.77x = 581,481.15 × 134,755.74
  4. Step 4: Simplify right side
    387,477.77x = 78,357,922,664.30
  5. Step 5: Solve for x
    x = 78,357,922,664.30/387,477.77
  6. Step 6: Final answer
    x = 202,225.60

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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.