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Finding the Fourth Proportional to 225,090, 310,624.20 and 124,503.12

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Solution

The fourth proportional to 225,090, 310,624.20 and 124,503.12 is: 171,814.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,090 : 310,624.20 = 124,503.12 : x
  2. Step 2: Convert to fraction form
    225,090/310,624.20 = 124,503.12/x
  3. Step 3: Cross multiply
    225,090x = 310,624.20 × 124,503.12
  4. Step 4: Simplify right side
    225,090x = 38,673,682,047.50
  5. Step 5: Solve for x
    x = 38,673,682,047.50/225,090
  6. Step 6: Final answer
    x = 171,814.31

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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.