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Finding the Fourth Proportional to 346,069.80, 518,545.80 and 195,863.40

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Solution

The fourth proportional to 346,069.80, 518,545.80 and 195,863.40 is: 293,478.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,069.80 : 518,545.80 = 195,863.40 : x
  2. Step 2: Convert to fraction form
    346,069.80/518,545.80 = 195,863.40/x
  3. Step 3: Cross multiply
    346,069.80x = 518,545.80 × 195,863.40
  4. Step 4: Simplify right side
    346,069.80x = 101,564,143,443.72
  5. Step 5: Solve for x
    x = 101,564,143,443.72/346,069.80
  6. Step 6: Final answer
    x = 293,478.78

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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.