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Finding the Fourth Proportional to 310,851.50, 428,990.82 and 183,524.36

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Solution

The fourth proportional to 310,851.50, 428,990.82 and 183,524.36 is: 253,272.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,851.50 : 428,990.82 = 183,524.36 : x
  2. Step 2: Convert to fraction form
    310,851.50/428,990.82 = 183,524.36/x
  3. Step 3: Cross multiply
    310,851.50x = 428,990.82 × 183,524.36
  4. Step 4: Simplify right side
    310,851.50x = 78,730,265,686.38
  5. Step 5: Solve for x
    x = 78,730,265,686.38/310,851.50
  6. Step 6: Final answer
    x = 253,272.92

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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.