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Finding the Fourth Proportional to 318,420.46, 439,483 and 182,545.62

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Solution

The fourth proportional to 318,420.46, 439,483 and 182,545.62 is: 251,948.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,420.46 : 439,483 = 182,545.62 : x
  2. Step 2: Convert to fraction form
    318,420.46/439,483 = 182,545.62/x
  3. Step 3: Cross multiply
    318,420.46x = 439,483 × 182,545.62
  4. Step 4: Simplify right side
    318,420.46x = 80,225,696,714.46
  5. Step 5: Solve for x
    x = 80,225,696,714.46/318,420.46
  6. Step 6: Final answer
    x = 251,948.94

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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.