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Finding the Fourth Proportional to 357,031.08, 535,550.09 and 90,791.60

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Solution

The fourth proportional to 357,031.08, 535,550.09 and 90,791.60 is: 136,188.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,031.08 : 535,550.09 = 90,791.60 : x
  2. Step 2: Convert to fraction form
    357,031.08/535,550.09 = 90,791.60/x
  3. Step 3: Cross multiply
    357,031.08x = 535,550.09 × 90,791.60
  4. Step 4: Simplify right side
    357,031.08x = 48,623,446,419.54
  5. Step 5: Solve for x
    x = 48,623,446,419.54/357,031.08
  6. Step 6: Final answer
    x = 136,188.27

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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.