Home / 288,519.90-398,151.63-175,379.10

Finding the Fourth Proportional to 288,519.90, 398,151.63 and 175,379.10

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Solution

The fourth proportional to 288,519.90, 398,151.63 and 175,379.10 is: 242,019.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,519.90 : 398,151.63 = 175,379.10 : x
  2. Step 2: Convert to fraction form
    288,519.90/398,151.63 = 175,379.10/x
  3. Step 3: Cross multiply
    288,519.90x = 398,151.63 × 175,379.10
  4. Step 4: Simplify right side
    288,519.90x = 69,827,474,532.93
  5. Step 5: Solve for x
    x = 69,827,474,532.93/288,519.90
  6. Step 6: Final answer
    x = 242,019.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.