Home / 290,002.20-434,420.10-195,523.80

Finding the Fourth Proportional to 290,002.20, 434,420.10 and 195,523.80

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Solution

The fourth proportional to 290,002.20, 434,420.10 and 195,523.80 is: 292,892.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,002.20 : 434,420.10 = 195,523.80 : x
  2. Step 2: Convert to fraction form
    290,002.20/434,420.10 = 195,523.80/x
  3. Step 3: Cross multiply
    290,002.20x = 434,420.10 × 195,523.80
  4. Step 4: Simplify right side
    290,002.20x = 84,939,468,748.38
  5. Step 5: Solve for x
    x = 84,939,468,748.38/290,002.20
  6. Step 6: Final answer
    x = 292,892.50

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1.5x scale

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.