Home / 261,582.50-392,546.10-143,336.90

Finding the Fourth Proportional to 261,582.50, 392,546.10 and 143,336.90

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Solution

The fourth proportional to 261,582.50, 392,546.10 and 143,336.90 is: 215,099.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,582.50 : 392,546.10 = 143,336.90 : x
  2. Step 2: Convert to fraction form
    261,582.50/392,546.10 = 143,336.90/x
  3. Step 3: Cross multiply
    261,582.50x = 392,546.10 × 143,336.90
  4. Step 4: Simplify right side
    261,582.50x = 56,266,341,081.09
  5. Step 5: Solve for x
    x = 56,266,341,081.09/261,582.50
  6. Step 6: Final answer
    x = 215,099.79

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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.