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Finding the Fourth Proportional to 328,223.31, 492,138.11 and 150,507.69

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Solution

The fourth proportional to 328,223.31, 492,138.11 and 150,507.69 is: 225,671.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,223.31 : 492,138.11 = 150,507.69 : x
  2. Step 2: Convert to fraction form
    328,223.31/492,138.11 = 150,507.69/x
  3. Step 3: Cross multiply
    328,223.31x = 492,138.11 × 150,507.69
  4. Step 4: Simplify right side
    328,223.31x = 74,070,571,088.51
  5. Step 5: Solve for x
    x = 74,070,571,088.51/328,223.31
  6. Step 6: Final answer
    x = 225,671.27

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1.5x scale

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.