Home / 389,566.20-584,349.30-223,217.40

Finding the Fourth Proportional to 389,566.20, 584,349.30 and 223,217.40

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Solution

The fourth proportional to 389,566.20, 584,349.30 and 223,217.40 is: 334,826.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,566.20 : 584,349.30 = 223,217.40 : x
  2. Step 2: Convert to fraction form
    389,566.20/584,349.30 = 223,217.40/x
  3. Step 3: Cross multiply
    389,566.20x = 584,349.30 × 223,217.40
  4. Step 4: Simplify right side
    389,566.20x = 130,436,931,437.82
  5. Step 5: Solve for x
    x = 130,436,931,437.82/389,566.20
  6. Step 6: Final answer
    x = 334,826.10

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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.