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Finding the Fourth Proportional to 261,146.56, 360,361.92 and 147,987.04

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Solution

The fourth proportional to 261,146.56, 360,361.92 and 147,987.04 is: 204,210.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,146.56 : 360,361.92 = 147,987.04 : x
  2. Step 2: Convert to fraction form
    261,146.56/360,361.92 = 147,987.04/x
  3. Step 3: Cross multiply
    261,146.56x = 360,361.92 × 147,987.04
  4. Step 4: Simplify right side
    261,146.56x = 53,328,893,869.52
  5. Step 5: Solve for x
    x = 53,328,893,869.52/261,146.56
  6. Step 6: Final answer
    x = 204,210.59

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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.