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Finding the Fourth Proportional to 145,781.52, 218,684.81 and 40,600.49

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Solution

The fourth proportional to 145,781.52, 218,684.81 and 40,600.49 is: 60,904.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,781.52 : 218,684.81 = 40,600.49 : x
  2. Step 2: Convert to fraction form
    145,781.52/218,684.81 = 40,600.49/x
  3. Step 3: Cross multiply
    145,781.52x = 218,684.81 × 40,600.49
  4. Step 4: Simplify right side
    145,781.52x = 8,878,709,145.13
  5. Step 5: Solve for x
    x = 8,878,709,145.13/145,781.52
  6. Step 6: Final answer
    x = 60,904.22

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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.