Home / 212,432.10-318,648.15-194,717.40

Finding the Fourth Proportional to 212,432.10, 318,648.15 and 194,717.40

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Solution

The fourth proportional to 212,432.10, 318,648.15 and 194,717.40 is: 292,076.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,432.10 : 318,648.15 = 194,717.40 : x
  2. Step 2: Convert to fraction form
    212,432.10/318,648.15 = 194,717.40/x
  3. Step 3: Cross multiply
    212,432.10x = 318,648.15 × 194,717.40
  4. Step 4: Simplify right side
    212,432.10x = 62,046,339,282.81
  5. Step 5: Solve for x
    x = 62,046,339,282.81/212,432.10
  6. Step 6: Final answer
    x = 292,076.10

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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.