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Finding the Fourth Proportional to 348,753.68, 523,135.38 and 99,435.68

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Solution

The fourth proportional to 348,753.68, 523,135.38 and 99,435.68 is: 149,154.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,753.68 : 523,135.38 = 99,435.68 : x
  2. Step 2: Convert to fraction form
    348,753.68/523,135.38 = 99,435.68/x
  3. Step 3: Cross multiply
    348,753.68x = 523,135.38 × 99,435.68
  4. Step 4: Simplify right side
    348,753.68x = 52,018,322,242.36
  5. Step 5: Solve for x
    x = 52,018,322,242.36/348,753.68
  6. Step 6: Final answer
    x = 149,154.91

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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.