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Finding the Fourth Proportional to 348,374.16, 480,761.46 and 203,175.90

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Solution

The fourth proportional to 348,374.16, 480,761.46 and 203,175.90 is: 280,385.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,374.16 : 480,761.46 = 203,175.90 : x
  2. Step 2: Convert to fraction form
    348,374.16/480,761.46 = 203,175.90/x
  3. Step 3: Cross multiply
    348,374.16x = 480,761.46 × 203,175.90
  4. Step 4: Simplify right side
    348,374.16x = 97,679,142,320.81
  5. Step 5: Solve for x
    x = 97,679,142,320.81/348,374.16
  6. Step 6: Final answer
    x = 280,385.73

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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.