Home / 434,702.20-652,247.70-154,420.60

Finding the Fourth Proportional to 434,702.20, 652,247.70 and 154,420.60

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Solution

The fourth proportional to 434,702.20, 652,247.70 and 154,420.60 is: 231,699.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,702.20 : 652,247.70 = 154,420.60 : x
  2. Step 2: Convert to fraction form
    434,702.20/652,247.70 = 154,420.60/x
  3. Step 3: Cross multiply
    434,702.20x = 652,247.70 × 154,420.60
  4. Step 4: Simplify right side
    434,702.20x = 100,720,481,182.62
  5. Step 5: Solve for x
    x = 100,720,481,182.62/434,702.20
  6. Step 6: Final answer
    x = 231,699.96

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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.