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Finding the Fourth Proportional to 427,657.74, 590,186.21 and 236,671.20

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Solution

The fourth proportional to 427,657.74, 590,186.21 and 236,671.20 is: 326,616.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,657.74 : 590,186.21 = 236,671.20 : x
  2. Step 2: Convert to fraction form
    427,657.74/590,186.21 = 236,671.20/x
  3. Step 3: Cross multiply
    427,657.74x = 590,186.21 × 236,671.20
  4. Step 4: Simplify right side
    427,657.74x = 139,680,077,360.80
  5. Step 5: Solve for x
    x = 139,680,077,360.80/427,657.74
  6. Step 6: Final answer
    x = 326,616.51

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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.