Home / 220,904.10-331,356.15-190,836.90

Finding the Fourth Proportional to 220,904.10, 331,356.15 and 190,836.90

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Solution

The fourth proportional to 220,904.10, 331,356.15 and 190,836.90 is: 286,255.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,904.10 : 331,356.15 = 190,836.90 : x
  2. Step 2: Convert to fraction form
    220,904.10/331,356.15 = 190,836.90/x
  3. Step 3: Cross multiply
    220,904.10x = 331,356.15 × 190,836.90
  4. Step 4: Simplify right side
    220,904.10x = 63,234,980,461.94
  5. Step 5: Solve for x
    x = 63,234,980,461.94/220,904.10
  6. Step 6: Final answer
    x = 286,255.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.