Home / 218,575.16-301,625.61-121,776.74

Finding the Fourth Proportional to 218,575.16, 301,625.61 and 121,776.74

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Solution

The fourth proportional to 218,575.16, 301,625.61 and 121,776.74 is: 168,047.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,575.16 : 301,625.61 = 121,776.74 : x
  2. Step 2: Convert to fraction form
    218,575.16/301,625.61 = 121,776.74/x
  3. Step 3: Cross multiply
    218,575.16x = 301,625.61 × 121,776.74
  4. Step 4: Simplify right side
    218,575.16x = 36,730,983,486.31
  5. Step 5: Solve for x
    x = 36,730,983,486.31/218,575.16
  6. Step 6: Final answer
    x = 168,047.38

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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.