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Finding the Fourth Proportional to 268,277.20, 402,415.80 and 173,798.80

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Solution

The fourth proportional to 268,277.20, 402,415.80 and 173,798.80 is: 260,698.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,277.20 : 402,415.80 = 173,798.80 : x
  2. Step 2: Convert to fraction form
    268,277.20/402,415.80 = 173,798.80/x
  3. Step 3: Cross multiply
    268,277.20x = 402,415.80 × 173,798.80
  4. Step 4: Simplify right side
    268,277.20x = 69,939,383,141.04
  5. Step 5: Solve for x
    x = 69,939,383,141.04/268,277.20
  6. Step 6: Final answer
    x = 260,698.20

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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.