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Finding the Fourth Proportional to 238,434.72, 329,140.80 and 160,927.20

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Solution

The fourth proportional to 238,434.72, 329,140.80 and 160,927.20 is: 222,147.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,434.72 : 329,140.80 = 160,927.20 : x
  2. Step 2: Convert to fraction form
    238,434.72/329,140.80 = 160,927.20/x
  3. Step 3: Cross multiply
    238,434.72x = 329,140.80 × 160,927.20
  4. Step 4: Simplify right side
    238,434.72x = 52,967,707,349.76
  5. Step 5: Solve for x
    x = 52,967,707,349.76/238,434.72
  6. Step 6: Final answer
    x = 222,147.63

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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.