Home / 261,539.06-392,250.20-121,279.46

Finding the Fourth Proportional to 261,539.06, 392,250.20 and 121,279.46

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Solution

The fourth proportional to 261,539.06, 392,250.20 and 121,279.46 is: 181,892.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,539.06 : 392,250.20 = 121,279.46 : x
  2. Step 2: Convert to fraction form
    261,539.06/392,250.20 = 121,279.46/x
  3. Step 3: Cross multiply
    261,539.06x = 392,250.20 × 121,279.46
  4. Step 4: Simplify right side
    261,539.06x = 47,571,890,782.84
  5. Step 5: Solve for x
    x = 47,571,890,782.84/261,539.06
  6. Step 6: Final answer
    x = 181,892.11

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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.