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Finding the Fourth Proportional to 340,890, 469,936.32 and 238,598.88

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Solution

The fourth proportional to 340,890, 469,936.32 and 238,598.88 is: 328,922.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,890 : 469,936.32 = 238,598.88 : x
  2. Step 2: Convert to fraction form
    340,890/469,936.32 = 238,598.88/x
  3. Step 3: Cross multiply
    340,890x = 469,936.32 × 238,598.88
  4. Step 4: Simplify right side
    340,890x = 112,126,279,623.32
  5. Step 5: Solve for x
    x = 112,126,279,623.32/340,890
  6. Step 6: Final answer
    x = 328,922.17

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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.