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Finding the Fourth Proportional to 229,064.44, 316,108.62 and 128,461.56

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Solution

The fourth proportional to 229,064.44, 316,108.62 and 128,461.56 is: 177,276.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,064.44 : 316,108.62 = 128,461.56 : x
  2. Step 2: Convert to fraction form
    229,064.44/316,108.62 = 128,461.56/x
  3. Step 3: Cross multiply
    229,064.44x = 316,108.62 × 128,461.56
  4. Step 4: Simplify right side
    229,064.44x = 40,607,806,454.65
  5. Step 5: Solve for x
    x = 40,607,806,454.65/229,064.44
  6. Step 6: Final answer
    x = 177,276.78

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