Home / 461,079.23-636,292.94-257,143.10

Finding the Fourth Proportional to 461,079.23, 636,292.94 and 257,143.10

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Solution

The fourth proportional to 461,079.23, 636,292.94 and 257,143.10 is: 354,859.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,079.23 : 636,292.94 = 257,143.10 : x
  2. Step 2: Convert to fraction form
    461,079.23/636,292.94 = 257,143.10/x
  3. Step 3: Cross multiply
    461,079.23x = 636,292.94 × 257,143.10
  4. Step 4: Simplify right side
    461,079.23x = 163,618,334,632.53
  5. Step 5: Solve for x
    x = 163,618,334,632.53/461,079.23
  6. Step 6: Final answer
    x = 354,859.48

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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.