Home / 257,132.79-384,135.45-166,436.62

Finding the Fourth Proportional to 257,132.79, 384,135.45 and 166,436.62

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Solution

The fourth proportional to 257,132.79, 384,135.45 and 166,436.62 is: 248,642.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,132.79 : 384,135.45 = 166,436.62 : x
  2. Step 2: Convert to fraction form
    257,132.79/384,135.45 = 166,436.62/x
  3. Step 3: Cross multiply
    257,132.79x = 384,135.45 × 166,436.62
  4. Step 4: Simplify right side
    257,132.79x = 63,934,205,920.18
  5. Step 5: Solve for x
    x = 63,934,205,920.18/257,132.79
  6. Step 6: Final answer
    x = 248,642.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.