Home / 212,545.29-318,468-148,509.93

Finding the Fourth Proportional to 212,545.29, 318,468 and 148,509.93

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Solution

The fourth proportional to 212,545.29, 318,468 and 148,509.93 is: 222,520.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,545.29 : 318,468 = 148,509.93 : x
  2. Step 2: Convert to fraction form
    212,545.29/318,468 = 148,509.93/x
  3. Step 3: Cross multiply
    212,545.29x = 318,468 × 148,509.93
  4. Step 4: Simplify right side
    212,545.29x = 47,295,660,387.24
  5. Step 5: Solve for x
    x = 47,295,660,387.24/212,545.29
  6. Step 6: Final answer
    x = 222,520.39

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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.