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Finding the Fourth Proportional to 229,166.82, 316,250.73 and 128,564.82

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Solution

The fourth proportional to 229,166.82, 316,250.73 and 128,564.82 is: 177,419.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,166.82 : 316,250.73 = 128,564.82 : x
  2. Step 2: Convert to fraction form
    229,166.82/316,250.73 = 128,564.82/x
  3. Step 3: Cross multiply
    229,166.82x = 316,250.73 × 128,564.82
  4. Step 4: Simplify right side
    229,166.82x = 40,658,718,177.32
  5. Step 5: Solve for x
    x = 40,658,718,177.32/229,166.82
  6. Step 6: Final answer
    x = 177,419.74

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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.