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Finding the Fourth Proportional to 370,368.34, 511,149.78 and 209,233.76

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Solution

The fourth proportional to 370,368.34, 511,149.78 and 209,233.76 is: 288,766.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,368.34 : 511,149.78 = 209,233.76 : x
  2. Step 2: Convert to fraction form
    370,368.34/511,149.78 = 209,233.76/x
  3. Step 3: Cross multiply
    370,368.34x = 511,149.78 × 209,233.76
  4. Step 4: Simplify right side
    370,368.34x = 106,949,787,836.82
  5. Step 5: Solve for x
    x = 106,949,787,836.82/370,368.34
  6. Step 6: Final answer
    x = 288,766.01

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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.