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Finding the Fourth Proportional to 518,508, 777,839.76 and 186,161.76

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Solution

The fourth proportional to 518,508, 777,839.76 and 186,161.76 is: 279,270.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,508 : 777,839.76 = 186,161.76 : x
  2. Step 2: Convert to fraction form
    518,508/777,839.76 = 186,161.76/x
  3. Step 3: Cross multiply
    518,508x = 777,839.76 × 186,161.76
  4. Step 4: Simplify right side
    518,508x = 144,804,018,719.58
  5. Step 5: Solve for x
    x = 144,804,018,719.58/518,508
  6. Step 6: Final answer
    x = 279,270.56

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1.5x scale

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.