Home / 320,862.59-442,795.63-175,665.95

Finding the Fourth Proportional to 320,862.59, 442,795.63 and 175,665.95

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Solution

The fourth proportional to 320,862.59, 442,795.63 and 175,665.95 is: 242,421.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,862.59 : 442,795.63 = 175,665.95 : x
  2. Step 2: Convert to fraction form
    320,862.59/442,795.63 = 175,665.95/x
  3. Step 3: Cross multiply
    320,862.59x = 442,795.63 × 175,665.95
  4. Step 4: Simplify right side
    320,862.59x = 77,784,115,463.47
  5. Step 5: Solve for x
    x = 77,784,115,463.47/320,862.59
  6. Step 6: Final answer
    x = 242,421.89

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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.