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Finding the Fourth Proportional to 290,454.72, 435,869.28 and 124,244.16

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Solution

The fourth proportional to 290,454.72, 435,869.28 and 124,244.16 is: 186,446.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,454.72 : 435,869.28 = 124,244.16 : x
  2. Step 2: Convert to fraction form
    290,454.72/435,869.28 = 124,244.16/x
  3. Step 3: Cross multiply
    290,454.72x = 435,869.28 × 124,244.16
  4. Step 4: Simplify right side
    290,454.72x = 54,154,212,563.40
  5. Step 5: Solve for x
    x = 54,154,212,563.40/290,454.72
  6. Step 6: Final answer
    x = 186,446.32

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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.