Home / 229,971.10-344,971.25-72,205.78

Finding the Fourth Proportional to 229,971.10, 344,971.25 and 72,205.78

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Solution

The fourth proportional to 229,971.10, 344,971.25 and 72,205.78 is: 108,313.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,971.10 : 344,971.25 = 72,205.78 : x
  2. Step 2: Convert to fraction form
    229,971.10/344,971.25 = 72,205.78/x
  3. Step 3: Cross multiply
    229,971.10x = 344,971.25 × 72,205.78
  4. Step 4: Simplify right side
    229,971.10x = 24,908,918,284.12
  5. Step 5: Solve for x
    x = 24,908,918,284.12/229,971.10
  6. Step 6: Final answer
    x = 108,313.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.