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Finding the Fourth Proportional to 212,472.78, 318,673.52 and 62,710.26

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Solution

The fourth proportional to 212,472.78, 318,673.52 and 62,710.26 is: 94,054.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,472.78 : 318,673.52 = 62,710.26 : x
  2. Step 2: Convert to fraction form
    212,472.78/318,673.52 = 62,710.26/x
  3. Step 3: Cross multiply
    212,472.78x = 318,673.52 × 62,710.26
  4. Step 4: Simplify right side
    212,472.78x = 19,984,099,294.32
  5. Step 5: Solve for x
    x = 19,984,099,294.32/212,472.78
  6. Step 6: Final answer
    x = 94,054.87

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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.