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Finding the Fourth Proportional to 229,627.90, 316,861.69 and 127,657.74

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Solution

The fourth proportional to 229,627.90, 316,861.69 and 127,657.74 is: 176,153.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,627.90 : 316,861.69 = 127,657.74 : x
  2. Step 2: Convert to fraction form
    229,627.90/316,861.69 = 127,657.74/x
  3. Step 3: Cross multiply
    229,627.90x = 316,861.69 × 127,657.74
  4. Step 4: Simplify right side
    229,627.90x = 40,449,846,599.69
  5. Step 5: Solve for x
    x = 40,449,846,599.69/229,627.90
  6. Step 6: Final answer
    x = 176,153.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.