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Finding the Fourth Proportional to 238,487.95, 329,041.56 and 142,959.79

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Solution

The fourth proportional to 238,487.95, 329,041.56 and 142,959.79 is: 197,241.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,487.95 : 329,041.56 = 142,959.79 : x
  2. Step 2: Convert to fraction form
    238,487.95/329,041.56 = 142,959.79/x
  3. Step 3: Cross multiply
    238,487.95x = 329,041.56 × 142,959.79
  4. Step 4: Simplify right side
    238,487.95x = 47,039,712,318.87
  5. Step 5: Solve for x
    x = 47,039,712,318.87/238,487.95
  6. Step 6: Final answer
    x = 197,241.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.