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Finding the Fourth Proportional to 237,307.78, 356,015 and 79,532.20

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Solution

The fourth proportional to 237,307.78, 356,015 and 79,532.20 is: 119,316.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,307.78 : 356,015 = 79,532.20 : x
  2. Step 2: Convert to fraction form
    237,307.78/356,015 = 79,532.20/x
  3. Step 3: Cross multiply
    237,307.78x = 356,015 × 79,532.20
  4. Step 4: Simplify right side
    237,307.78x = 28,314,656,183
  5. Step 5: Solve for x
    x = 28,314,656,183/237,307.78
  6. Step 6: Final answer
    x = 119,316.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.