Home / 218,247.90-301,011-149,378.18

Finding the Fourth Proportional to 218,247.90, 301,011 and 149,378.18

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Solution

The fourth proportional to 218,247.90, 301,011 and 149,378.18 is: 206,024.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,247.90 : 301,011 = 149,378.18 : x
  2. Step 2: Convert to fraction form
    218,247.90/301,011 = 149,378.18/x
  3. Step 3: Cross multiply
    218,247.90x = 301,011 × 149,378.18
  4. Step 4: Simplify right side
    218,247.90x = 44,964,475,339.98
  5. Step 5: Solve for x
    x = 44,964,475,339.98/218,247.90
  6. Step 6: Final answer
    x = 206,024.78

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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.