Home / 370,716.28-553,361.39-318,461.56

Finding the Fourth Proportional to 370,716.28, 553,361.39 and 318,461.56

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Solution

The fourth proportional to 370,716.28, 553,361.39 and 318,461.56 is: 475,361.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,716.28 : 553,361.39 = 318,461.56 : x
  2. Step 2: Convert to fraction form
    370,716.28/553,361.39 = 318,461.56/x
  3. Step 3: Cross multiply
    370,716.28x = 553,361.39 × 318,461.56
  4. Step 4: Simplify right side
    370,716.28x = 176,224,331,503.17
  5. Step 5: Solve for x
    x = 176,224,331,503.17/370,716.28
  6. Step 6: Final answer
    x = 475,361.73

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1.5x scale

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.