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Finding the Fourth Proportional to 225,094.03, 310,639.73 and 129,631.48

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Solution

The fourth proportional to 225,094.03, 310,639.73 and 129,631.48 is: 178,897.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,094.03 : 310,639.73 = 129,631.48 : x
  2. Step 2: Convert to fraction form
    225,094.03/310,639.73 = 129,631.48/x
  3. Step 3: Cross multiply
    225,094.03x = 310,639.73 × 129,631.48
  4. Step 4: Simplify right side
    225,094.03x = 40,268,686,521.94
  5. Step 5: Solve for x
    x = 40,268,686,521.94/225,094.03
  6. Step 6: Final answer
    x = 178,897.18

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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.