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Finding the Fourth Proportional to 229,490.29, 316,695.86 and 127,515.34

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Solution

The fourth proportional to 229,490.29, 316,695.86 and 127,515.34 is: 175,970.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,490.29 : 316,695.86 = 127,515.34 : x
  2. Step 2: Convert to fraction form
    229,490.29/316,695.86 = 127,515.34/x
  3. Step 3: Cross multiply
    229,490.29x = 316,695.86 × 127,515.34
  4. Step 4: Simplify right side
    229,490.29x = 40,383,579,626.92
  5. Step 5: Solve for x
    x = 40,383,579,626.92/229,490.29
  6. Step 6: Final answer
    x = 175,970.76

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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.