Home / 219,490.76-329,331.02-77,437.42

Finding the Fourth Proportional to 219,490.76, 329,331.02 and 77,437.42

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Solution

The fourth proportional to 219,490.76, 329,331.02 and 77,437.42 is: 116,189.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,490.76 : 329,331.02 = 77,437.42 : x
  2. Step 2: Convert to fraction form
    219,490.76/329,331.02 = 77,437.42/x
  3. Step 3: Cross multiply
    219,490.76x = 329,331.02 × 77,437.42
  4. Step 4: Simplify right side
    219,490.76x = 25,502,543,304.25
  5. Step 5: Solve for x
    x = 25,502,543,304.25/219,490.76
  6. Step 6: Final answer
    x = 116,189.60

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1.5x scale

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.