Home / 311,116.28-429,372.66-190,337.96

Finding the Fourth Proportional to 311,116.28, 429,372.66 and 190,337.96

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Solution

The fourth proportional to 311,116.28, 429,372.66 and 190,337.96 is: 262,686.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,116.28 : 429,372.66 = 190,337.96 : x
  2. Step 2: Convert to fraction form
    311,116.28/429,372.66 = 190,337.96/x
  3. Step 3: Cross multiply
    311,116.28x = 429,372.66 × 190,337.96
  4. Step 4: Simplify right side
    311,116.28x = 81,725,916,184.17
  5. Step 5: Solve for x
    x = 81,725,916,184.17/311,116.28
  6. Step 6: Final answer
    x = 262,686.08

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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.