Home / 400,813.84-553,222.92-231,150.16

Finding the Fourth Proportional to 400,813.84, 553,222.92 and 231,150.16

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Solution

The fourth proportional to 400,813.84, 553,222.92 and 231,150.16 is: 319,044.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,813.84 : 553,222.92 = 231,150.16 : x
  2. Step 2: Convert to fraction form
    400,813.84/553,222.92 = 231,150.16/x
  3. Step 3: Cross multiply
    400,813.84x = 553,222.92 × 231,150.16
  4. Step 4: Simplify right side
    400,813.84x = 127,877,566,473.67
  5. Step 5: Solve for x
    x = 127,877,566,473.67/400,813.84
  6. Step 6: Final answer
    x = 319,044.79

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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.