Home / 370,713.28-553,356.92-318,458.56

Finding the Fourth Proportional to 370,713.28, 553,356.92 and 318,458.56

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Solution

The fourth proportional to 370,713.28, 553,356.92 and 318,458.56 is: 475,357.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,713.28 : 553,356.92 = 318,458.56 : x
  2. Step 2: Convert to fraction form
    370,713.28/553,356.92 = 318,458.56/x
  3. Step 3: Cross multiply
    370,713.28x = 553,356.92 × 318,458.56
  4. Step 4: Simplify right side
    370,713.28x = 176,221,247,909.24
  5. Step 5: Solve for x
    x = 176,221,247,909.24/370,713.28
  6. Step 6: Final answer
    x = 475,357.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.