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Finding the Fourth Proportional to 225,030.12, 310,395.21 and 144,329.82

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Solution

The fourth proportional to 225,030.12, 310,395.21 and 144,329.82 is: 199,081.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,030.12 : 310,395.21 = 144,329.82 : x
  2. Step 2: Convert to fraction form
    225,030.12/310,395.21 = 144,329.82/x
  3. Step 3: Cross multiply
    225,030.12x = 310,395.21 × 144,329.82
  4. Step 4: Simplify right side
    225,030.12x = 44,799,284,788.16
  5. Step 5: Solve for x
    x = 44,799,284,788.16/225,030.12
  6. Step 6: Final answer
    x = 199,081.28

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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.