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Finding the Fourth Proportional to 318,363, 439,336.23 and 175,114.50

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Solution

The fourth proportional to 318,363, 439,336.23 and 175,114.50 is: 241,655.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,363 : 439,336.23 = 175,114.50 : x
  2. Step 2: Convert to fraction form
    318,363/439,336.23 = 175,114.50/x
  3. Step 3: Cross multiply
    318,363x = 439,336.23 × 175,114.50
  4. Step 4: Simplify right side
    318,363x = 76,934,144,248.34
  5. Step 5: Solve for x
    x = 76,934,144,248.34/318,363
  6. Step 6: Final answer
    x = 241,655.42

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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.