Home / 279,495.28-385,693.14-152,168.32

Finding the Fourth Proportional to 279,495.28, 385,693.14 and 152,168.32

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Solution

The fourth proportional to 279,495.28, 385,693.14 and 152,168.32 is: 209,986.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,495.28 : 385,693.14 = 152,168.32 : x
  2. Step 2: Convert to fraction form
    279,495.28/385,693.14 = 152,168.32/x
  3. Step 3: Cross multiply
    279,495.28x = 385,693.14 × 152,168.32
  4. Step 4: Simplify right side
    279,495.28x = 58,690,277,149.32
  5. Step 5: Solve for x
    x = 58,690,277,149.32/279,495.28
  6. Step 6: Final answer
    x = 209,986.65

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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.