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Finding the Fourth Proportional to 387,671.33, 534,907.99 and 226,495.23

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Solution

The fourth proportional to 387,671.33, 534,907.99 and 226,495.23 is: 312,517.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,671.33 : 534,907.99 = 226,495.23 : x
  2. Step 2: Convert to fraction form
    387,671.33/534,907.99 = 226,495.23/x
  3. Step 3: Cross multiply
    387,671.33x = 534,907.99 × 226,495.23
  4. Step 4: Simplify right side
    387,671.33x = 121,154,108,223.89
  5. Step 5: Solve for x
    x = 121,154,108,223.89/387,671.33
  6. Step 6: Final answer
    x = 312,517.59

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1.5x scale

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.