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Finding the Fourth Proportional to 169,251.84, 253,836 and 69,440.40

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Solution

The fourth proportional to 169,251.84, 253,836 and 69,440.40 is: 104,143.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,251.84 : 253,836 = 69,440.40 : x
  2. Step 2: Convert to fraction form
    169,251.84/253,836 = 69,440.40/x
  3. Step 3: Cross multiply
    169,251.84x = 253,836 × 69,440.40
  4. Step 4: Simplify right side
    169,251.84x = 17,626,473,374.40
  5. Step 5: Solve for x
    x = 17,626,473,374.40/169,251.84
  6. Step 6: Final answer
    x = 104,143.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.