Home / 393,005.29-589,632.48-140,280.18

Finding the Fourth Proportional to 393,005.29, 589,632.48 and 140,280.18

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Solution

The fourth proportional to 393,005.29, 589,632.48 and 140,280.18 is: 210,464.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,005.29 : 589,632.48 = 140,280.18 : x
  2. Step 2: Convert to fraction form
    393,005.29/589,632.48 = 140,280.18/x
  3. Step 3: Cross multiply
    393,005.29x = 589,632.48 × 140,280.18
  4. Step 4: Simplify right side
    393,005.29x = 82,713,750,428.25
  5. Step 5: Solve for x
    x = 82,713,750,428.25/393,005.29
  6. Step 6: Final answer
    x = 210,464.73

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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.