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Finding the Fourth Proportional to 247,931.88, 342,145.99 and 147,329.88

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Solution

The fourth proportional to 247,931.88, 342,145.99 and 147,329.88 is: 203,315.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,931.88 : 342,145.99 = 147,329.88 : x
  2. Step 2: Convert to fraction form
    247,931.88/342,145.99 = 147,329.88/x
  3. Step 3: Cross multiply
    247,931.88x = 342,145.99 × 147,329.88
  4. Step 4: Simplify right side
    247,931.88x = 50,408,327,649.18
  5. Step 5: Solve for x
    x = 50,408,327,649.18/247,931.88
  6. Step 6: Final answer
    x = 203,315.23

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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.