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Finding the Fourth Proportional to 257,056.29, 354,737.48 and 143,879.04

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Solution

The fourth proportional to 257,056.29, 354,737.48 and 143,879.04 is: 198,552.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,056.29 : 354,737.48 = 143,879.04 : x
  2. Step 2: Convert to fraction form
    257,056.29/354,737.48 = 143,879.04/x
  3. Step 3: Cross multiply
    257,056.29x = 354,737.48 × 143,879.04
  4. Step 4: Simplify right side
    257,056.29x = 51,039,287,355.02
  5. Step 5: Solve for x
    x = 51,039,287,355.02/257,056.29
  6. Step 6: Final answer
    x = 198,552.96

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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.