Home / 320,862.55-442,795.55-175,665.89

Finding the Fourth Proportional to 320,862.55, 442,795.55 and 175,665.89

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Solution

The fourth proportional to 320,862.55, 442,795.55 and 175,665.89 is: 242,421.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,862.55 : 442,795.55 = 175,665.89 : x
  2. Step 2: Convert to fraction form
    320,862.55/442,795.55 = 175,665.89/x
  3. Step 3: Cross multiply
    320,862.55x = 442,795.55 × 175,665.89
  4. Step 4: Simplify right side
    320,862.55x = 77,784,072,030.98
  5. Step 5: Solve for x
    x = 77,784,072,030.98/320,862.55
  6. Step 6: Final answer
    x = 242,421.78

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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.