Home / 372,005.20-557,964.60-105,806.80

Finding the Fourth Proportional to 372,005.20, 557,964.60 and 105,806.80

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Solution

The fourth proportional to 372,005.20, 557,964.60 and 105,806.80 is: 158,697.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,005.20 : 557,964.60 = 105,806.80 : x
  2. Step 2: Convert to fraction form
    372,005.20/557,964.60 = 105,806.80/x
  3. Step 3: Cross multiply
    372,005.20x = 557,964.60 × 105,806.80
  4. Step 4: Simplify right side
    372,005.20x = 59,036,448,839.28
  5. Step 5: Solve for x
    x = 59,036,448,839.28/372,005.20
  6. Step 6: Final answer
    x = 158,697.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.