Home / 215,490.65-297,377.53-120,000.76

Finding the Fourth Proportional to 215,490.65, 297,377.53 and 120,000.76

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Solution

The fourth proportional to 215,490.65, 297,377.53 and 120,000.76 is: 165,601.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,490.65 : 297,377.53 = 120,000.76 : x
  2. Step 2: Convert to fraction form
    215,490.65/297,377.53 = 120,000.76/x
  3. Step 3: Cross multiply
    215,490.65x = 297,377.53 × 120,000.76
  4. Step 4: Simplify right side
    215,490.65x = 35,685,528,563.48
  5. Step 5: Solve for x
    x = 35,685,528,563.48/215,490.65
  6. Step 6: Final answer
    x = 165,601.29

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Double scale
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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.