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Finding the Fourth Proportional to 290,752.80, 435,837.60 and 133,094.40

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Solution

The fourth proportional to 290,752.80, 435,837.60 and 133,094.40 is: 199,508.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,752.80 : 435,837.60 = 133,094.40 : x
  2. Step 2: Convert to fraction form
    290,752.80/435,837.60 = 133,094.40/x
  3. Step 3: Cross multiply
    290,752.80x = 435,837.60 × 133,094.40
  4. Step 4: Simplify right side
    290,752.80x = 58,007,543,869.44
  5. Step 5: Solve for x
    x = 58,007,543,869.44/290,752.80
  6. Step 6: Final answer
    x = 199,508.12

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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.