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Finding the Fourth Proportional to 229,292.64, 316,419.36 and 127,312.84

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Solution

The fourth proportional to 229,292.64, 316,419.36 and 127,312.84 is: 175,689.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,292.64 : 316,419.36 = 127,312.84 : x
  2. Step 2: Convert to fraction form
    229,292.64/316,419.36 = 127,312.84/x
  3. Step 3: Cross multiply
    229,292.64x = 316,419.36 × 127,312.84
  4. Step 4: Simplify right side
    229,292.64x = 40,284,247,352.58
  5. Step 5: Solve for x
    x = 40,284,247,352.58/229,292.64
  6. Step 6: Final answer
    x = 175,689.23

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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.