Home / 261,373.20-360,640-170,861.76

Finding the Fourth Proportional to 261,373.20, 360,640 and 170,861.76

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Solution

The fourth proportional to 261,373.20, 360,640 and 170,861.76 is: 235,753.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,373.20 : 360,640 = 170,861.76 : x
  2. Step 2: Convert to fraction form
    261,373.20/360,640 = 170,861.76/x
  3. Step 3: Cross multiply
    261,373.20x = 360,640 × 170,861.76
  4. Step 4: Simplify right side
    261,373.20x = 61,619,585,126.40
  5. Step 5: Solve for x
    x = 61,619,585,126.40/261,373.20
  6. Step 6: Final answer
    x = 235,753.26

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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.