Home / 320,862.88-442,795.99-175,666.21

Finding the Fourth Proportional to 320,862.88, 442,795.99 and 175,666.21

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Solution

The fourth proportional to 320,862.88, 442,795.99 and 175,666.21 is: 242,422.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,862.88 : 442,795.99 = 175,666.21 : x
  2. Step 2: Convert to fraction form
    320,862.88/442,795.99 = 175,666.21/x
  3. Step 3: Cross multiply
    320,862.88x = 442,795.99 × 175,666.21
  4. Step 4: Simplify right side
    320,862.88x = 77,784,293,805.66
  5. Step 5: Solve for x
    x = 77,784,293,805.66/320,862.88
  6. Step 6: Final answer
    x = 242,422.23

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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.