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Finding the Fourth Proportional to 311,346.76, 429,633 and 175,337.22

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Solution

The fourth proportional to 311,346.76, 429,633 and 175,337.22 is: 241,950.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,346.76 : 429,633 = 175,337.22 : x
  2. Step 2: Convert to fraction form
    311,346.76/429,633 = 175,337.22/x
  3. Step 3: Cross multiply
    311,346.76x = 429,633 × 175,337.22
  4. Step 4: Simplify right side
    311,346.76x = 75,330,655,840.26
  5. Step 5: Solve for x
    x = 75,330,655,840.26/311,346.76
  6. Step 6: Final answer
    x = 241,950.99

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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.