Home / 218,040.18-300,820.77-141,655.38

Finding the Fourth Proportional to 218,040.18, 300,820.77 and 141,655.38

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Solution

The fourth proportional to 218,040.18, 300,820.77 and 141,655.38 is: 195,435.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,040.18 : 300,820.77 = 141,655.38 : x
  2. Step 2: Convert to fraction form
    218,040.18/300,820.77 = 141,655.38/x
  3. Step 3: Cross multiply
    218,040.18x = 300,820.77 × 141,655.38
  4. Step 4: Simplify right side
    218,040.18x = 42,612,880,486.24
  5. Step 5: Solve for x
    x = 42,612,880,486.24/218,040.18
  6. Step 6: Final answer
    x = 195,435.91

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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.