Home / 245,381.28-368,071.24-76,914.40

Finding the Fourth Proportional to 245,381.28, 368,071.24 and 76,914.40

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Solution

The fourth proportional to 245,381.28, 368,071.24 and 76,914.40 is: 115,371.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,381.28 : 368,071.24 = 76,914.40 : x
  2. Step 2: Convert to fraction form
    245,381.28/368,071.24 = 76,914.40/x
  3. Step 3: Cross multiply
    245,381.28x = 368,071.24 × 76,914.40
  4. Step 4: Simplify right side
    245,381.28x = 28,309,978,581.86
  5. Step 5: Solve for x
    x = 28,309,978,581.86/245,381.28
  6. Step 6: Final answer
    x = 115,371.39

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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.