Home / 843,154.50-1,264,638.60-212,068.56

Finding the Fourth Proportional to 843,154.50, 1,264,638.60 and 212,068.56

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Solution

The fourth proportional to 843,154.50, 1,264,638.60 and 212,068.56 is: 318,079.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,154.50 : 1,264,638.60 = 212,068.56 : x
  2. Step 2: Convert to fraction form
    843,154.50/1,264,638.60 = 212,068.56/x
  3. Step 3: Cross multiply
    843,154.50x = 1,264,638.60 × 212,068.56
  4. Step 4: Simplify right side
    843,154.50x = 268,190,086,822.42
  5. Step 5: Solve for x
    x = 268,190,086,822.42/843,154.50
  6. Step 6: Final answer
    x = 318,079.41

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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.