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Finding the Fourth Proportional to 387,685.60, 534,927.60 and 226,509.52

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Solution

The fourth proportional to 387,685.60, 534,927.60 and 226,509.52 is: 312,537.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,685.60 : 534,927.60 = 226,509.52 : x
  2. Step 2: Convert to fraction form
    387,685.60/534,927.60 = 226,509.52/x
  3. Step 3: Cross multiply
    387,685.60x = 534,927.60 × 226,509.52
  4. Step 4: Simplify right side
    387,685.60x = 121,166,193,910.75
  5. Step 5: Solve for x
    x = 121,166,193,910.75/387,685.60
  6. Step 6: Final answer
    x = 312,537.26

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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.