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Finding the Fourth Proportional to 350,300.78, 523,531.80 and 255,730.11

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Solution

The fourth proportional to 350,300.78, 523,531.80 and 255,730.11 is: 382,193.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,300.78 : 523,531.80 = 255,730.11 : x
  2. Step 2: Convert to fraction form
    350,300.78/523,531.80 = 255,730.11/x
  3. Step 3: Cross multiply
    350,300.78x = 523,531.80 × 255,730.11
  4. Step 4: Simplify right side
    350,300.78x = 133,882,844,802.50
  5. Step 5: Solve for x
    x = 133,882,844,802.50/350,300.78
  6. Step 6: Final answer
    x = 382,193.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.