Home / 380,077.20-524,562.18-218,900.88

Finding the Fourth Proportional to 380,077.20, 524,562.18 and 218,900.88

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Solution

The fourth proportional to 380,077.20, 524,562.18 and 218,900.88 is: 302,115.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,077.20 : 524,562.18 = 218,900.88 : x
  2. Step 2: Convert to fraction form
    380,077.20/524,562.18 = 218,900.88/x
  3. Step 3: Cross multiply
    380,077.20x = 524,562.18 × 218,900.88
  4. Step 4: Simplify right side
    380,077.20x = 114,827,122,816.72
  5. Step 5: Solve for x
    x = 114,827,122,816.72/380,077.20
  6. Step 6: Final answer
    x = 302,115.26

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1.5x scale

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.