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Finding the Fourth Proportional to 379,891.77, 569,838.60 and 155,252.17

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Solution

The fourth proportional to 379,891.77, 569,838.60 and 155,252.17 is: 232,878.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,891.77 : 569,838.60 = 155,252.17 : x
  2. Step 2: Convert to fraction form
    379,891.77/569,838.60 = 155,252.17/x
  3. Step 3: Cross multiply
    379,891.77x = 569,838.60 × 155,252.17
  4. Step 4: Simplify right side
    379,891.77x = 88,468,679,199.76
  5. Step 5: Solve for x
    x = 88,468,679,199.76/379,891.77
  6. Step 6: Final answer
    x = 232,878.64

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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.