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Finding the Fourth Proportional to 292,446.70, 438,670.02 and 159,438.80

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Solution

The fourth proportional to 292,446.70, 438,670.02 and 159,438.80 is: 239,158.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,446.70 : 438,670.02 = 159,438.80 : x
  2. Step 2: Convert to fraction form
    292,446.70/438,670.02 = 159,438.80/x
  3. Step 3: Cross multiply
    292,446.70x = 438,670.02 × 159,438.80
  4. Step 4: Simplify right side
    292,446.70x = 69,941,021,584.78
  5. Step 5: Solve for x
    x = 69,941,021,584.78/292,446.70
  6. Step 6: Final answer
    x = 239,158.18

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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.