Home / 320,862.09-442,794.90-175,665.42

Finding the Fourth Proportional to 320,862.09, 442,794.90 and 175,665.42

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Solution

The fourth proportional to 320,862.09, 442,794.90 and 175,665.42 is: 242,421.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,862.09 : 442,794.90 = 175,665.42 : x
  2. Step 2: Convert to fraction form
    320,862.09/442,794.90 = 175,665.42/x
  3. Step 3: Cross multiply
    320,862.09x = 442,794.90 × 175,665.42
  4. Step 4: Simplify right side
    320,862.09x = 77,783,750,754.65
  5. Step 5: Solve for x
    x = 77,783,750,754.65/320,862.09
  6. Step 6: Final answer
    x = 242,421.13

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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.