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Finding the Fourth Proportional to 540,174.10, 809,459.32 and 219,934.19

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Solution

The fourth proportional to 540,174.10, 809,459.32 and 219,934.19 is: 329,574.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,174.10 : 809,459.32 = 219,934.19 : x
  2. Step 2: Convert to fraction form
    540,174.10/809,459.32 = 219,934.19/x
  3. Step 3: Cross multiply
    540,174.10x = 809,459.32 × 219,934.19
  4. Step 4: Simplify right side
    540,174.10x = 178,027,779,882.15
  5. Step 5: Solve for x
    x = 178,027,779,882.15/540,174.10
  6. Step 6: Final answer
    x = 329,574.82

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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.