Home / 393,038.73-589,528.94-140,290.38

Finding the Fourth Proportional to 393,038.73, 589,528.94 and 140,290.38

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Solution

The fourth proportional to 393,038.73, 589,528.94 and 140,290.38 is: 210,425.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,038.73 : 589,528.94 = 140,290.38 : x
  2. Step 2: Convert to fraction form
    393,038.73/589,528.94 = 140,290.38/x
  3. Step 3: Cross multiply
    393,038.73x = 589,528.94 × 140,290.38
  4. Step 4: Simplify right side
    393,038.73x = 82,705,238,312.15
  5. Step 5: Solve for x
    x = 82,705,238,312.15/393,038.73
  6. Step 6: Final answer
    x = 210,425.16

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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.