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Finding the Fourth Proportional to 228,989.28, 316,115.28 and 144,153.12

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Solution

The fourth proportional to 228,989.28, 316,115.28 and 144,153.12 is: 199,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,989.28 : 316,115.28 = 144,153.12 : x
  2. Step 2: Convert to fraction form
    228,989.28/316,115.28 = 144,153.12/x
  3. Step 3: Cross multiply
    228,989.28x = 316,115.28 × 144,153.12
  4. Step 4: Simplify right side
    228,989.28x = 45,569,003,891.67
  5. Step 5: Solve for x
    x = 45,569,003,891.67/228,989.28
  6. Step 6: Final answer
    x = 199,000.60

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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.