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Finding the Fourth Proportional to 261,536.60, 360,909.60 and 148,380.68

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Solution

The fourth proportional to 261,536.60, 360,909.60 and 148,380.68 is: 204,759.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,536.60 : 360,909.60 = 148,380.68 : x
  2. Step 2: Convert to fraction form
    261,536.60/360,909.60 = 148,380.68/x
  3. Step 3: Cross multiply
    261,536.60x = 360,909.60 × 148,380.68
  4. Step 4: Simplify right side
    261,536.60x = 53,552,011,866.53
  5. Step 5: Solve for x
    x = 53,552,011,866.53/261,536.60
  6. Step 6: Final answer
    x = 204,759.15

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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.