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Finding the Fourth Proportional to 370,126.71, 511,230.29 and 267,990.47

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Solution

The fourth proportional to 370,126.71, 511,230.29 and 267,990.47 is: 370,156.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,126.71 : 511,230.29 = 267,990.47 : x
  2. Step 2: Convert to fraction form
    370,126.71/511,230.29 = 267,990.47/x
  3. Step 3: Cross multiply
    370,126.71x = 511,230.29 × 267,990.47
  4. Step 4: Simplify right side
    370,126.71x = 137,004,845,695.34
  5. Step 5: Solve for x
    x = 137,004,845,695.34/370,126.71
  6. Step 6: Final answer
    x = 370,156.60

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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.