Home / 384,861.48-531,107.52-215,095.61

Finding the Fourth Proportional to 384,861.48, 531,107.52 and 215,095.61

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Solution

The fourth proportional to 384,861.48, 531,107.52 and 215,095.61 is: 296,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,861.48 : 531,107.52 = 215,095.61 : x
  2. Step 2: Convert to fraction form
    384,861.48/531,107.52 = 215,095.61/x
  3. Step 3: Cross multiply
    384,861.48x = 531,107.52 × 215,095.61
  4. Step 4: Simplify right side
    384,861.48x = 114,238,895,017.41
  5. Step 5: Solve for x
    x = 114,238,895,017.41/384,861.48
  6. Step 6: Final answer
    x = 296,831.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.