Home / 311,905.14-430,419.38-175,937.10

Finding the Fourth Proportional to 311,905.14, 430,419.38 and 175,937.10

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Solution

The fourth proportional to 311,905.14, 430,419.38 and 175,937.10 is: 242,787.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,905.14 : 430,419.38 = 175,937.10 : x
  2. Step 2: Convert to fraction form
    311,905.14/430,419.38 = 175,937.10/x
  3. Step 3: Cross multiply
    311,905.14x = 430,419.38 × 175,937.10
  4. Step 4: Simplify right side
    311,905.14x = 75,726,737,501.00
  5. Step 5: Solve for x
    x = 75,726,737,501.00/311,905.14
  6. Step 6: Final answer
    x = 242,787.72

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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.