Home / 311,208.60-466,748.10-133,721.40

Finding the Fourth Proportional to 311,208.60, 466,748.10 and 133,721.40

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Solution

The fourth proportional to 311,208.60, 466,748.10 and 133,721.40 is: 200,554.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,208.60 : 466,748.10 = 133,721.40 : x
  2. Step 2: Convert to fraction form
    311,208.60/466,748.10 = 133,721.40/x
  3. Step 3: Cross multiply
    311,208.60x = 466,748.10 × 133,721.40
  4. Step 4: Simplify right side
    311,208.60x = 62,414,209,379.34
  5. Step 5: Solve for x
    x = 62,414,209,379.34/311,208.60
  6. Step 6: Final answer
    x = 200,554.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.