Home / 311,398.02-429,738.21-175,433.45

Finding the Fourth Proportional to 311,398.02, 429,738.21 and 175,433.45

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Solution

The fourth proportional to 311,398.02, 429,738.21 and 175,433.45 is: 242,103.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,398.02 : 429,738.21 = 175,433.45 : x
  2. Step 2: Convert to fraction form
    311,398.02/429,738.21 = 175,433.45/x
  3. Step 3: Cross multiply
    311,398.02x = 429,738.21 × 175,433.45
  4. Step 4: Simplify right side
    311,398.02x = 75,390,454,628.43
  5. Step 5: Solve for x
    x = 75,390,454,628.43/311,398.02
  6. Step 6: Final answer
    x = 242,103.19

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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.