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Finding the Fourth Proportional to 225,019.53, 310,516.02 and 128,246.04

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Solution

The fourth proportional to 225,019.53, 310,516.02 and 128,246.04 is: 176,973.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,019.53 : 310,516.02 = 128,246.04 : x
  2. Step 2: Convert to fraction form
    225,019.53/310,516.02 = 128,246.04/x
  3. Step 3: Cross multiply
    225,019.53x = 310,516.02 × 128,246.04
  4. Step 4: Simplify right side
    225,019.53x = 39,822,449,921.56
  5. Step 5: Solve for x
    x = 39,822,449,921.56/225,019.53
  6. Step 6: Final answer
    x = 176,973.31

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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.