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Finding the Fourth Proportional to 225,018.54, 310,379.28 and 144,318.24

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Solution

The fourth proportional to 225,018.54, 310,379.28 and 144,318.24 is: 199,065.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,018.54 : 310,379.28 = 144,318.24 : x
  2. Step 2: Convert to fraction form
    225,018.54/310,379.28 = 144,318.24/x
  3. Step 3: Cross multiply
    225,018.54x = 310,379.28 × 144,318.24
  4. Step 4: Simplify right side
    225,018.54x = 44,793,391,422.07
  5. Step 5: Solve for x
    x = 44,793,391,422.07/225,018.54
  6. Step 6: Final answer
    x = 199,065.34

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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.