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Finding the Fourth Proportional to 238,242.90, 328,792.46 and 157,530.45

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Solution

The fourth proportional to 238,242.90, 328,792.46 and 157,530.45 is: 217,403.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,242.90 : 328,792.46 = 157,530.45 : x
  2. Step 2: Convert to fraction form
    238,242.90/328,792.46 = 157,530.45/x
  3. Step 3: Cross multiply
    238,242.90x = 328,792.46 × 157,530.45
  4. Step 4: Simplify right side
    238,242.90x = 51,794,823,392.75
  5. Step 5: Solve for x
    x = 51,794,823,392.75/238,242.90
  6. Step 6: Final answer
    x = 217,403.43

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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.