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Finding the Fourth Proportional to 518,132.66, 777,194.67 and 144,154.58

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Solution

The fourth proportional to 518,132.66, 777,194.67 and 144,154.58 is: 216,230.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,132.66 : 777,194.67 = 144,154.58 : x
  2. Step 2: Convert to fraction form
    518,132.66/777,194.67 = 144,154.58/x
  3. Step 3: Cross multiply
    518,132.66x = 777,194.67 × 144,154.58
  4. Step 4: Simplify right side
    518,132.66x = 112,036,171,232.09
  5. Step 5: Solve for x
    x = 112,036,171,232.09/518,132.66
  6. Step 6: Final answer
    x = 216,230.67

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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.