Home / 272,823.10-409,234.65-215,742.40

Finding the Fourth Proportional to 272,823.10, 409,234.65 and 215,742.40

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Solution

The fourth proportional to 272,823.10, 409,234.65 and 215,742.40 is: 323,613.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,823.10 : 409,234.65 = 215,742.40 : x
  2. Step 2: Convert to fraction form
    272,823.10/409,234.65 = 215,742.40/x
  3. Step 3: Cross multiply
    272,823.10x = 409,234.65 × 215,742.40
  4. Step 4: Simplify right side
    272,823.10x = 88,289,265,554.16
  5. Step 5: Solve for x
    x = 88,289,265,554.16/272,823.10
  6. Step 6: Final answer
    x = 323,613.60

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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.