Home / 257,818.05-386,737.55-122,812.71

Finding the Fourth Proportional to 257,818.05, 386,737.55 and 122,812.71

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Solution

The fourth proportional to 257,818.05, 386,737.55 and 122,812.71 is: 184,224.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,818.05 : 386,737.55 = 122,812.71 : x
  2. Step 2: Convert to fraction form
    257,818.05/386,737.55 = 122,812.71/x
  3. Step 3: Cross multiply
    257,818.05x = 386,737.55 × 122,812.71
  4. Step 4: Simplify right side
    257,818.05x = 47,496,286,574.26
  5. Step 5: Solve for x
    x = 47,496,286,574.26/257,818.05
  6. Step 6: Final answer
    x = 184,224.05

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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.