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Finding the Fourth Proportional to 229,231.20, 316,323.20 and 127,248.64

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Solution

The fourth proportional to 229,231.20, 316,323.20 and 127,248.64 is: 175,594.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,231.20 : 316,323.20 = 127,248.64 : x
  2. Step 2: Convert to fraction form
    229,231.20/316,323.20 = 127,248.64/x
  3. Step 3: Cross multiply
    229,231.20x = 316,323.20 × 127,248.64
  4. Step 4: Simplify right side
    229,231.20x = 40,251,697,000.45
  5. Step 5: Solve for x
    x = 40,251,697,000.45/229,231.20
  6. Step 6: Final answer
    x = 175,594.32

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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.