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Finding the Fourth Proportional to 261,328.80, 360,714.96 and 207,708.96

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Solution

The fourth proportional to 261,328.80, 360,714.96 and 207,708.96 is: 286,702.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,328.80 : 360,714.96 = 207,708.96 : x
  2. Step 2: Convert to fraction form
    261,328.80/360,714.96 = 207,708.96/x
  3. Step 3: Cross multiply
    261,328.80x = 360,714.96 × 207,708.96
  4. Step 4: Simplify right side
    261,328.80x = 74,923,729,198.04
  5. Step 5: Solve for x
    x = 74,923,729,198.04/261,328.80
  6. Step 6: Final answer
    x = 286,702.92

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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.