Home / 370,569.28-553,142-318,314.56

Finding the Fourth Proportional to 370,569.28, 553,142 and 318,314.56

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Solution

The fourth proportional to 370,569.28, 553,142 and 318,314.56 is: 475,142.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,569.28 : 553,142 = 318,314.56 : x
  2. Step 2: Convert to fraction form
    370,569.28/553,142 = 318,314.56/x
  3. Step 3: Cross multiply
    370,569.28x = 553,142 × 318,314.56
  4. Step 4: Simplify right side
    370,569.28x = 176,073,152,347.52
  5. Step 5: Solve for x
    x = 176,073,152,347.52/370,569.28
  6. Step 6: Final answer
    x = 475,142.33

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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.