Home / 320,384.04-442,125.11-175,190.28

Finding the Fourth Proportional to 320,384.04, 442,125.11 and 175,190.28

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Solution

The fourth proportional to 320,384.04, 442,125.11 and 175,190.28 is: 241,759.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,384.04 : 442,125.11 = 175,190.28 : x
  2. Step 2: Convert to fraction form
    320,384.04/442,125.11 = 175,190.28/x
  3. Step 3: Cross multiply
    320,384.04x = 442,125.11 × 175,190.28
  4. Step 4: Simplify right side
    320,384.04x = 77,456,021,815.93
  5. Step 5: Solve for x
    x = 77,456,021,815.93/320,384.04
  6. Step 6: Final answer
    x = 241,759.93

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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.