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Finding the Fourth Proportional to 371,026.78, 556,621.82 and 211,177.92

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Solution

The fourth proportional to 371,026.78, 556,621.82 and 211,177.92 is: 316,813.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,026.78 : 556,621.82 = 211,177.92 : x
  2. Step 2: Convert to fraction form
    371,026.78/556,621.82 = 211,177.92/x
  3. Step 3: Cross multiply
    371,026.78x = 556,621.82 × 211,177.92
  4. Step 4: Simplify right side
    371,026.78x = 117,546,238,054.45
  5. Step 5: Solve for x
    x = 117,546,238,054.45/371,026.78
  6. Step 6: Final answer
    x = 316,813.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.