Home / 380,812.80-571,437.90-144,325.20

Finding the Fourth Proportional to 380,812.80, 571,437.90 and 144,325.20

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Solution

The fourth proportional to 380,812.80, 571,437.90 and 144,325.20 is: 216,570.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,812.80 : 571,437.90 = 144,325.20 : x
  2. Step 2: Convert to fraction form
    380,812.80/571,437.90 = 144,325.20/x
  3. Step 3: Cross multiply
    380,812.80x = 571,437.90 × 144,325.20
  4. Step 4: Simplify right side
    380,812.80x = 82,472,889,205.08
  5. Step 5: Solve for x
    x = 82,472,889,205.08/380,812.80
  6. Step 6: Final answer
    x = 216,570.69

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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.