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Finding the Fourth Proportional to 243,440.16, 335,928.24 and 136,001.76

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Solution

The fourth proportional to 243,440.16, 335,928.24 and 136,001.76 is: 187,671.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,440.16 : 335,928.24 = 136,001.76 : x
  2. Step 2: Convert to fraction form
    243,440.16/335,928.24 = 136,001.76/x
  3. Step 3: Cross multiply
    243,440.16x = 335,928.24 × 136,001.76
  4. Step 4: Simplify right side
    243,440.16x = 45,686,831,873.70
  5. Step 5: Solve for x
    x = 45,686,831,873.70/243,440.16
  6. Step 6: Final answer
    x = 187,671.71

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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.