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Finding the Fourth Proportional to 212,409.40, 318,613.72 and 62,754.82

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Solution

The fourth proportional to 212,409.40, 318,613.72 and 62,754.82 is: 94,132.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,409.40 : 318,613.72 = 62,754.82 : x
  2. Step 2: Convert to fraction form
    212,409.40/318,613.72 = 62,754.82/x
  3. Step 3: Cross multiply
    212,409.40x = 318,613.72 × 62,754.82
  4. Step 4: Simplify right side
    212,409.40x = 19,994,546,648.13
  5. Step 5: Solve for x
    x = 19,994,546,648.13/212,409.40
  6. Step 6: Final answer
    x = 94,132.12

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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.