Home / 210,864.33-315,946.57-148,403.61

Finding the Fourth Proportional to 210,864.33, 315,946.57 and 148,403.61

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Solution

The fourth proportional to 210,864.33, 315,946.57 and 148,403.61 is: 222,359.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,864.33 : 315,946.57 = 148,403.61 : x
  2. Step 2: Convert to fraction form
    210,864.33/315,946.57 = 148,403.61/x
  3. Step 3: Cross multiply
    210,864.33x = 315,946.57 × 148,403.61
  4. Step 4: Simplify right side
    210,864.33x = 46,887,611,555.12
  5. Step 5: Solve for x
    x = 46,887,611,555.12/210,864.33
  6. Step 6: Final answer
    x = 222,359.14

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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.