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Finding the Fourth Proportional to 387,577.36, 581,366.31 and 107,094.88

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Solution

The fourth proportional to 387,577.36, 581,366.31 and 107,094.88 is: 160,642.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,577.36 : 581,366.31 = 107,094.88 : x
  2. Step 2: Convert to fraction form
    387,577.36/581,366.31 = 107,094.88/x
  3. Step 3: Cross multiply
    387,577.36x = 581,366.31 × 107,094.88
  4. Step 4: Simplify right side
    387,577.36x = 62,261,355,205.49
  5. Step 5: Solve for x
    x = 62,261,355,205.49/387,577.36
  6. Step 6: Final answer
    x = 160,642.39

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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.