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Finding the Fourth Proportional to 274,311.10, 411,466.65 and 239,319.10

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Solution

The fourth proportional to 274,311.10, 411,466.65 and 239,319.10 is: 358,978.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,311.10 : 411,466.65 = 239,319.10 : x
  2. Step 2: Convert to fraction form
    274,311.10/411,466.65 = 239,319.10/x
  3. Step 3: Cross multiply
    274,311.10x = 411,466.65 × 239,319.10
  4. Step 4: Simplify right side
    274,311.10x = 98,471,828,358.02
  5. Step 5: Solve for x
    x = 98,471,828,358.02/274,311.10
  6. Step 6: Final answer
    x = 358,978.65

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1.5x scale

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.