Home / 399,280.24-551,014.52-217,992.62

Finding the Fourth Proportional to 399,280.24, 551,014.52 and 217,992.62

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Solution

The fourth proportional to 399,280.24, 551,014.52 and 217,992.62 is: 300,834.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,280.24 : 551,014.52 = 217,992.62 : x
  2. Step 2: Convert to fraction form
    399,280.24/551,014.52 = 217,992.62/x
  3. Step 3: Cross multiply
    399,280.24x = 551,014.52 × 217,992.62
  4. Step 4: Simplify right side
    399,280.24x = 120,117,098,872.84
  5. Step 5: Solve for x
    x = 120,117,098,872.84/399,280.24
  6. Step 6: Final answer
    x = 300,834.07

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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.