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Finding the Fourth Proportional to 387,751.74, 534,879 and 232,662.92

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Solution

The fourth proportional to 387,751.74, 534,879 and 232,662.92 is: 320,943.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,751.74 : 534,879 = 232,662.92 : x
  2. Step 2: Convert to fraction form
    387,751.74/534,879 = 232,662.92/x
  3. Step 3: Cross multiply
    387,751.74x = 534,879 × 232,662.92
  4. Step 4: Simplify right side
    387,751.74x = 124,446,507,312.29
  5. Step 5: Solve for x
    x = 124,446,507,312.29/387,751.74
  6. Step 6: Final answer
    x = 320,943.78

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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.