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Finding the Fourth Proportional to 238,279.94, 328,900.13 and 153,397

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Solution

The fourth proportional to 238,279.94, 328,900.13 and 153,397 is: 211,735.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,279.94 : 328,900.13 = 153,397 : x
  2. Step 2: Convert to fraction form
    238,279.94/328,900.13 = 153,397/x
  3. Step 3: Cross multiply
    238,279.94x = 328,900.13 × 153,397
  4. Step 4: Simplify right side
    238,279.94x = 50,452,292,474.63
  5. Step 5: Solve for x
    x = 50,452,292,474.63/238,279.94
  6. Step 6: Final answer
    x = 211,735.38

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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.