Home / 403,239.85-556,466.61-221,947.90

Finding the Fourth Proportional to 403,239.85, 556,466.61 and 221,947.90

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Solution

The fourth proportional to 403,239.85, 556,466.61 and 221,947.90 is: 306,285.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,239.85 : 556,466.61 = 221,947.90 : x
  2. Step 2: Convert to fraction form
    403,239.85/556,466.61 = 221,947.90/x
  3. Step 3: Cross multiply
    403,239.85x = 556,466.61 × 221,947.90
  4. Step 4: Simplify right side
    403,239.85x = 123,506,595,509.62
  5. Step 5: Solve for x
    x = 123,506,595,509.62/403,239.85
  6. Step 6: Final answer
    x = 306,285.69

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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.