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Finding the Fourth Proportional to 292,179.48, 438,334.90 and 92,511.80

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Solution

The fourth proportional to 292,179.48, 438,334.90 and 92,511.80 is: 138,788.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,179.48 : 438,334.90 = 92,511.80 : x
  2. Step 2: Convert to fraction form
    292,179.48/438,334.90 = 92,511.80/x
  3. Step 3: Cross multiply
    292,179.48x = 438,334.90 × 92,511.80
  4. Step 4: Simplify right side
    292,179.48x = 40,551,150,601.82
  5. Step 5: Solve for x
    x = 40,551,150,601.82/292,179.48
  6. Step 6: Final answer
    x = 138,788.50

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1.5x scale

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.