Home / 318,521.25-477,972.66-118,981.87

Finding the Fourth Proportional to 318,521.25, 477,972.66 and 118,981.87

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Solution

The fourth proportional to 318,521.25, 477,972.66 and 118,981.87 is: 178,544.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,521.25 : 477,972.66 = 118,981.87 : x
  2. Step 2: Convert to fraction form
    318,521.25/477,972.66 = 118,981.87/x
  3. Step 3: Cross multiply
    318,521.25x = 477,972.66 × 118,981.87
  4. Step 4: Simplify right side
    318,521.25x = 56,870,080,146.92
  5. Step 5: Solve for x
    x = 56,870,080,146.92/318,521.25
  6. Step 6: Final answer
    x = 178,544.07

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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.