Home / 345,934.67-518,923.87-146,228.76

Finding the Fourth Proportional to 345,934.67, 518,923.87 and 146,228.76

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Solution

The fourth proportional to 345,934.67, 518,923.87 and 146,228.76 is: 219,352.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,934.67 : 518,923.87 = 146,228.76 : x
  2. Step 2: Convert to fraction form
    345,934.67/518,923.87 = 146,228.76/x
  3. Step 3: Cross multiply
    345,934.67x = 518,923.87 × 146,228.76
  4. Step 4: Simplify right side
    345,934.67x = 75,881,593,678.93
  5. Step 5: Solve for x
    x = 75,881,593,678.93/345,934.67
  6. Step 6: Final answer
    x = 219,352.38

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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.