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Finding the Fourth Proportional to 243,521.58, 336,061.02 and 136,093.40

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Solution

The fourth proportional to 243,521.58, 336,061.02 and 136,093.40 is: 187,809.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,521.58 : 336,061.02 = 136,093.40 : x
  2. Step 2: Convert to fraction form
    243,521.58/336,061.02 = 136,093.40/x
  3. Step 3: Cross multiply
    243,521.58x = 336,061.02 × 136,093.40
  4. Step 4: Simplify right side
    243,521.58x = 45,735,686,819.27
  5. Step 5: Solve for x
    x = 45,735,686,819.27/243,521.58
  6. Step 6: Final answer
    x = 187,809.58

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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.