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Finding the Fourth Proportional to 539,367.30, 809,342.55 and 223,856.10

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Solution

The fourth proportional to 539,367.30, 809,342.55 and 223,856.10 is: 335,905.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,367.30 : 809,342.55 = 223,856.10 : x
  2. Step 2: Convert to fraction form
    539,367.30/809,342.55 = 223,856.10/x
  3. Step 3: Cross multiply
    539,367.30x = 809,342.55 × 223,856.10
  4. Step 4: Simplify right side
    539,367.30x = 181,176,266,807.06
  5. Step 5: Solve for x
    x = 181,176,266,807.06/539,367.30
  6. Step 6: Final answer
    x = 335,905.17

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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.