Home / 272,764.12-376,902.66-212,490.40

Finding the Fourth Proportional to 272,764.12, 376,902.66 and 212,490.40

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Solution

The fourth proportional to 272,764.12, 376,902.66 and 212,490.40 is: 293,617.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,764.12 : 376,902.66 = 212,490.40 : x
  2. Step 2: Convert to fraction form
    272,764.12/376,902.66 = 212,490.40/x
  3. Step 3: Cross multiply
    272,764.12x = 376,902.66 × 212,490.40
  4. Step 4: Simplify right side
    272,764.12x = 80,088,196,984.46
  5. Step 5: Solve for x
    x = 80,088,196,984.46/272,764.12
  6. Step 6: Final answer
    x = 293,617.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.