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Finding the Fourth Proportional to 397,775.16, 548,987.56 and 223,364.92

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Solution

The fourth proportional to 397,775.16, 548,987.56 and 223,364.92 is: 308,276.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,775.16 : 548,987.56 = 223,364.92 : x
  2. Step 2: Convert to fraction form
    397,775.16/548,987.56 = 223,364.92/x
  3. Step 3: Cross multiply
    397,775.16x = 548,987.56 × 223,364.92
  4. Step 4: Simplify right side
    397,775.16x = 122,624,562,420.40
  5. Step 5: Solve for x
    x = 122,624,562,420.40/397,775.16
  6. Step 6: Final answer
    x = 308,276.07

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1.5x scale

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.