Home / 517,039.20-775,576.08-143,030.88

Finding the Fourth Proportional to 517,039.20, 775,576.08 and 143,030.88

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Solution

The fourth proportional to 517,039.20, 775,576.08 and 143,030.88 is: 214,551.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,039.20 : 775,576.08 = 143,030.88 : x
  2. Step 2: Convert to fraction form
    517,039.20/775,576.08 = 143,030.88/x
  3. Step 3: Cross multiply
    517,039.20x = 775,576.08 × 143,030.88
  4. Step 4: Simplify right side
    517,039.20x = 110,931,329,229.35
  5. Step 5: Solve for x
    x = 110,931,329,229.35/517,039.20
  6. Step 6: Final answer
    x = 214,551.10

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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.