Home / 312,625.04-431,396.28-176,670.80

Finding the Fourth Proportional to 312,625.04, 431,396.28 and 176,670.80

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Solution

The fourth proportional to 312,625.04, 431,396.28 and 176,670.80 is: 243,790.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,625.04 : 431,396.28 = 176,670.80 : x
  2. Step 2: Convert to fraction form
    312,625.04/431,396.28 = 176,670.80/x
  3. Step 3: Cross multiply
    312,625.04x = 431,396.28 × 176,670.80
  4. Step 4: Simplify right side
    312,625.04x = 76,215,125,904.62
  5. Step 5: Solve for x
    x = 76,215,125,904.62/312,625.04
  6. Step 6: Final answer
    x = 243,790.86

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1.5x scale

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.