Home / 352,421.85-528,285.27-225,702.21

Finding the Fourth Proportional to 352,421.85, 528,285.27 and 225,702.21

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Solution

The fourth proportional to 352,421.85, 528,285.27 and 225,702.21 is: 338,330.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,421.85 : 528,285.27 = 225,702.21 : x
  2. Step 2: Convert to fraction form
    352,421.85/528,285.27 = 225,702.21/x
  3. Step 3: Cross multiply
    352,421.85x = 528,285.27 × 225,702.21
  4. Step 4: Simplify right side
    352,421.85x = 119,235,152,949.45
  5. Step 5: Solve for x
    x = 119,235,152,949.45/352,421.85
  6. Step 6: Final answer
    x = 338,330.76

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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.