Home / 261,720.88-361,165.71-159,916.75

Finding the Fourth Proportional to 261,720.88, 361,165.71 and 159,916.75

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Solution

The fourth proportional to 261,720.88, 361,165.71 and 159,916.75 is: 220,679.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,720.88 : 361,165.71 = 159,916.75 : x
  2. Step 2: Convert to fraction form
    261,720.88/361,165.71 = 159,916.75/x
  3. Step 3: Cross multiply
    261,720.88x = 361,165.71 × 159,916.75
  4. Step 4: Simplify right side
    261,720.88x = 57,756,446,554.64
  5. Step 5: Solve for x
    x = 57,756,446,554.64/261,720.88
  6. Step 6: Final answer
    x = 220,679.55

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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.