Home / 311,015.18-429,214.71-175,057.90

Finding the Fourth Proportional to 311,015.18, 429,214.71 and 175,057.90

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Solution

The fourth proportional to 311,015.18, 429,214.71 and 175,057.90 is: 241,587.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,015.18 : 429,214.71 = 175,057.90 : x
  2. Step 2: Convert to fraction form
    311,015.18/429,214.71 = 175,057.90/x
  3. Step 3: Cross multiply
    311,015.18x = 429,214.71 × 175,057.90
  4. Step 4: Simplify right side
    311,015.18x = 75,137,425,781.71
  5. Step 5: Solve for x
    x = 75,137,425,781.71/311,015.18
  6. Step 6: Final answer
    x = 241,587.65

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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.