Home / 309,246.48-426,748.20-175,110.80

Finding the Fourth Proportional to 309,246.48, 426,748.20 and 175,110.80

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Solution

The fourth proportional to 309,246.48, 426,748.20 and 175,110.80 is: 241,646.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,246.48 : 426,748.20 = 175,110.80 : x
  2. Step 2: Convert to fraction form
    309,246.48/426,748.20 = 175,110.80/x
  3. Step 3: Cross multiply
    309,246.48x = 426,748.20 × 175,110.80
  4. Step 4: Simplify right side
    309,246.48x = 74,728,218,700.56
  5. Step 5: Solve for x
    x = 74,728,218,700.56/309,246.48
  6. Step 6: Final answer
    x = 241,646.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.