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Finding the Fourth Proportional to 243,996.47, 336,715.08 and 136,566.50

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Solution

The fourth proportional to 243,996.47, 336,715.08 and 136,566.50 is: 188,461.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,996.47 : 336,715.08 = 136,566.50 : x
  2. Step 2: Convert to fraction form
    243,996.47/336,715.08 = 136,566.50/x
  3. Step 3: Cross multiply
    243,996.47x = 336,715.08 × 136,566.50
  4. Step 4: Simplify right side
    243,996.47x = 45,983,999,972.82
  5. Step 5: Solve for x
    x = 45,983,999,972.82/243,996.47
  6. Step 6: Final answer
    x = 188,461.74

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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.