Home / 261,740.06-392,612.13-143,346.81

Finding the Fourth Proportional to 261,740.06, 392,612.13 and 143,346.81

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Solution

The fourth proportional to 261,740.06, 392,612.13 and 143,346.81 is: 215,021.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,740.06 : 392,612.13 = 143,346.81 : x
  2. Step 2: Convert to fraction form
    261,740.06/392,612.13 = 143,346.81/x
  3. Step 3: Cross multiply
    261,740.06x = 392,612.13 × 143,346.81
  4. Step 4: Simplify right side
    261,740.06x = 56,279,696,402.81
  5. Step 5: Solve for x
    x = 56,279,696,402.81/261,740.06
  6. Step 6: Final answer
    x = 215,021.33

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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.