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Finding the Fourth Proportional to 238,242.69, 328,710.69 and 136,247.09

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Solution

The fourth proportional to 238,242.69, 328,710.69 and 136,247.09 is: 187,984.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,242.69 : 328,710.69 = 136,247.09 : x
  2. Step 2: Convert to fraction form
    238,242.69/328,710.69 = 136,247.09/x
  3. Step 3: Cross multiply
    238,242.69x = 328,710.69 × 136,247.09
  4. Step 4: Simplify right side
    238,242.69x = 44,785,873,320.84
  5. Step 5: Solve for x
    x = 44,785,873,320.84/238,242.69
  6. Step 6: Final answer
    x = 187,984.25

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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.