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Finding the Fourth Proportional to 344,594.78, 516,365.90 and 144,805.95

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Solution

The fourth proportional to 344,594.78, 516,365.90 and 144,805.95 is: 216,987.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,594.78 : 516,365.90 = 144,805.95 : x
  2. Step 2: Convert to fraction form
    344,594.78/516,365.90 = 144,805.95/x
  3. Step 3: Cross multiply
    344,594.78x = 516,365.90 × 144,805.95
  4. Step 4: Simplify right side
    344,594.78x = 74,772,854,697.11
  5. Step 5: Solve for x
    x = 74,772,854,697.11/344,594.78
  6. Step 6: Final answer
    x = 216,987.78

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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.