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Finding the Fourth Proportional to 245,581.07, 368,371.74 and 77,100.65

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Solution

The fourth proportional to 245,581.07, 368,371.74 and 77,100.65 is: 115,651.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,581.07 : 368,371.74 = 77,100.65 : x
  2. Step 2: Convert to fraction form
    245,581.07/368,371.74 = 77,100.65/x
  3. Step 3: Cross multiply
    245,581.07x = 368,371.74 × 77,100.65
  4. Step 4: Simplify right side
    245,581.07x = 28,401,700,595.63
  5. Step 5: Solve for x
    x = 28,401,700,595.63/245,581.07
  6. Step 6: Final answer
    x = 115,651.02

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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.