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Finding the Fourth Proportional to 225,108, 310,658.80 and 124,506.08

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Solution

The fourth proportional to 225,108, 310,658.80 and 124,506.08 is: 171,823.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,108 : 310,658.80 = 124,506.08 : x
  2. Step 2: Convert to fraction form
    225,108/310,658.80 = 124,506.08/x
  3. Step 3: Cross multiply
    225,108x = 310,658.80 × 124,506.08
  4. Step 4: Simplify right side
    225,108x = 38,678,909,405.50
  5. Step 5: Solve for x
    x = 38,678,909,405.50/225,108
  6. Step 6: Final answer
    x = 171,823.79

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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.