Home / 442,666.20-664,085.70-189,946.20

Finding the Fourth Proportional to 442,666.20, 664,085.70 and 189,946.20

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Solution

The fourth proportional to 442,666.20, 664,085.70 and 189,946.20 is: 284,956.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,666.20 : 664,085.70 = 189,946.20 : x
  2. Step 2: Convert to fraction form
    442,666.20/664,085.70 = 189,946.20/x
  3. Step 3: Cross multiply
    442,666.20x = 664,085.70 × 189,946.20
  4. Step 4: Simplify right side
    442,666.20x = 126,140,555,189.34
  5. Step 5: Solve for x
    x = 126,140,555,189.34/442,666.20
  6. Step 6: Final answer
    x = 284,956.37

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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.