Home / 258,335.60-356,624.24-172,439.72

Finding the Fourth Proportional to 258,335.60, 356,624.24 and 172,439.72

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Solution

The fourth proportional to 258,335.60, 356,624.24 and 172,439.72 is: 238,047.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,335.60 : 356,624.24 = 172,439.72 : x
  2. Step 2: Convert to fraction form
    258,335.60/356,624.24 = 172,439.72/x
  3. Step 3: Cross multiply
    258,335.60x = 356,624.24 × 172,439.72
  4. Step 4: Simplify right side
    258,335.60x = 61,496,184,090.81
  5. Step 5: Solve for x
    x = 61,496,184,090.81/258,335.60
  6. Step 6: Final answer
    x = 238,047.66

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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.