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Finding the Fourth Proportional to 243,897.66, 336,560.40 and 136,447.92

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Solution

The fourth proportional to 243,897.66, 336,560.40 and 136,447.92 is: 188,287.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,897.66 : 336,560.40 = 136,447.92 : x
  2. Step 2: Convert to fraction form
    243,897.66/336,560.40 = 136,447.92/x
  3. Step 3: Cross multiply
    243,897.66x = 336,560.40 × 136,447.92
  4. Step 4: Simplify right side
    243,897.66x = 45,922,966,534.37
  5. Step 5: Solve for x
    x = 45,922,966,534.37/243,897.66
  6. Step 6: Final answer
    x = 188,287.85

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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.