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Finding the Fourth Proportional to 229,211.95, 316,309.71 and 127,238.22

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Solution

The fourth proportional to 229,211.95, 316,309.71 and 127,238.22 is: 175,587.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,211.95 : 316,309.71 = 127,238.22 : x
  2. Step 2: Convert to fraction form
    229,211.95/316,309.71 = 127,238.22/x
  3. Step 3: Cross multiply
    229,211.95x = 316,309.71 × 127,238.22
  4. Step 4: Simplify right side
    229,211.95x = 40,246,684,469.12
  5. Step 5: Solve for x
    x = 40,246,684,469.12/229,211.95
  6. Step 6: Final answer
    x = 175,587.20

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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.