Home / 284,681.28-427,029.60-74,314.56

Finding the Fourth Proportional to 284,681.28, 427,029.60 and 74,314.56

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Solution

The fourth proportional to 284,681.28, 427,029.60 and 74,314.56 is: 111,473.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,681.28 : 427,029.60 = 74,314.56 : x
  2. Step 2: Convert to fraction form
    284,681.28/427,029.60 = 74,314.56/x
  3. Step 3: Cross multiply
    284,681.28x = 427,029.60 × 74,314.56
  4. Step 4: Simplify right side
    284,681.28x = 31,734,516,830.98
  5. Step 5: Solve for x
    x = 31,734,516,830.98/284,681.28
  6. Step 6: Final answer
    x = 111,473.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.