Home / 272,765.12-376,904.04-212,491.40

Finding the Fourth Proportional to 272,765.12, 376,904.04 and 212,491.40

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Solution

The fourth proportional to 272,765.12, 376,904.04 and 212,491.40 is: 293,618.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,765.12 : 376,904.04 = 212,491.40 : x
  2. Step 2: Convert to fraction form
    272,765.12/376,904.04 = 212,491.40/x
  3. Step 3: Cross multiply
    272,765.12x = 376,904.04 × 212,491.40
  4. Step 4: Simplify right side
    272,765.12x = 80,088,867,125.26
  5. Step 5: Solve for x
    x = 80,088,867,125.26/272,765.12
  6. Step 6: Final answer
    x = 293,618.43

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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.