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Finding the Fourth Proportional to 365,939.80, 548,909.70 and 225,971.80

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Solution

The fourth proportional to 365,939.80, 548,909.70 and 225,971.80 is: 338,957.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,939.80 : 548,909.70 = 225,971.80 : x
  2. Step 2: Convert to fraction form
    365,939.80/548,909.70 = 225,971.80/x
  3. Step 3: Cross multiply
    365,939.80x = 548,909.70 × 225,971.80
  4. Step 4: Simplify right side
    365,939.80x = 124,038,112,946.46
  5. Step 5: Solve for x
    x = 124,038,112,946.46/365,939.80
  6. Step 6: Final answer
    x = 338,957.70

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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.