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Finding the Fourth Proportional to 290,088.04, 435,304.60 and 156,965.62

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Solution

The fourth proportional to 290,088.04, 435,304.60 and 156,965.62 is: 235,541.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,088.04 : 435,304.60 = 156,965.62 : x
  2. Step 2: Convert to fraction form
    290,088.04/435,304.60 = 156,965.62/x
  3. Step 3: Cross multiply
    290,088.04x = 435,304.60 × 156,965.62
  4. Step 4: Simplify right side
    290,088.04x = 68,327,856,427.85
  5. Step 5: Solve for x
    x = 68,327,856,427.85/290,088.04
  6. Step 6: Final answer
    x = 235,541.79

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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.