Home / 220,897.40-331,346.10-115,702.70

Finding the Fourth Proportional to 220,897.40, 331,346.10 and 115,702.70

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Solution

The fourth proportional to 220,897.40, 331,346.10 and 115,702.70 is: 173,554.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,897.40 : 331,346.10 = 115,702.70 : x
  2. Step 2: Convert to fraction form
    220,897.40/331,346.10 = 115,702.70/x
  3. Step 3: Cross multiply
    220,897.40x = 331,346.10 × 115,702.70
  4. Step 4: Simplify right side
    220,897.40x = 38,337,638,404.47
  5. Step 5: Solve for x
    x = 38,337,638,404.47/220,897.40
  6. Step 6: Final answer
    x = 173,554.05

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1.5x scale

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.