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Finding the Fourth Proportional to 145,567.82, 218,351.82 and 40,386.90

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Solution

The fourth proportional to 145,567.82, 218,351.82 and 40,386.90 is: 60,580.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,567.82 : 218,351.82 = 40,386.90 : x
  2. Step 2: Convert to fraction form
    145,567.82/218,351.82 = 40,386.90/x
  3. Step 3: Cross multiply
    145,567.82x = 218,351.82 × 40,386.90
  4. Step 4: Simplify right side
    145,567.82x = 8,818,553,119.16
  5. Step 5: Solve for x
    x = 8,818,553,119.16/145,567.82
  6. Step 6: Final answer
    x = 60,580.37

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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.