Home / 345,779.96-518,545.13-146,115.77

Finding the Fourth Proportional to 345,779.96, 518,545.13 and 146,115.77

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Solution

The fourth proportional to 345,779.96, 518,545.13 and 146,115.77 is: 219,120.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,779.96 : 518,545.13 = 146,115.77 : x
  2. Step 2: Convert to fraction form
    345,779.96/518,545.13 = 146,115.77/x
  3. Step 3: Cross multiply
    345,779.96x = 518,545.13 × 146,115.77
  4. Step 4: Simplify right side
    345,779.96x = 75,767,617,626.40
  5. Step 5: Solve for x
    x = 75,767,617,626.40/345,779.96
  6. Step 6: Final answer
    x = 219,120.91

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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.