Home / 261,279.22-392,281.73-135,012.77

Finding the Fourth Proportional to 261,279.22, 392,281.73 and 135,012.77

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Solution

The fourth proportional to 261,279.22, 392,281.73 and 135,012.77 is: 202,706.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,279.22 : 392,281.73 = 135,012.77 : x
  2. Step 2: Convert to fraction form
    261,279.22/392,281.73 = 135,012.77/x
  3. Step 3: Cross multiply
    261,279.22x = 392,281.73 × 135,012.77
  4. Step 4: Simplify right side
    261,279.22x = 52,963,045,294.61
  5. Step 5: Solve for x
    x = 52,963,045,294.61/261,279.22
  6. Step 6: Final answer
    x = 202,706.69

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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.