Home / 361,621.80-499,225.86-280,868.52

Finding the Fourth Proportional to 361,621.80, 499,225.86 and 280,868.52

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Solution

The fourth proportional to 361,621.80, 499,225.86 and 280,868.52 is: 387,744.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,621.80 : 499,225.86 = 280,868.52 : x
  2. Step 2: Convert to fraction form
    361,621.80/499,225.86 = 280,868.52/x
  3. Step 3: Cross multiply
    361,621.80x = 499,225.86 × 280,868.52
  4. Step 4: Simplify right side
    361,621.80x = 140,216,828,443.93
  5. Step 5: Solve for x
    x = 140,216,828,443.93/361,621.80
  6. Step 6: Final answer
    x = 387,744.40

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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.