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Finding the Fourth Proportional to 258,228.48, 356,472 and 173,392.32

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Solution

The fourth proportional to 258,228.48, 356,472 and 173,392.32 is: 239,359.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,228.48 : 356,472 = 173,392.32 : x
  2. Step 2: Convert to fraction form
    258,228.48/356,472 = 173,392.32/x
  3. Step 3: Cross multiply
    258,228.48x = 356,472 × 173,392.32
  4. Step 4: Simplify right side
    258,228.48x = 61,809,507,095.04
  5. Step 5: Solve for x
    x = 61,809,507,095.04/258,228.48
  6. Step 6: Final answer
    x = 239,359.76

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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.