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Finding the Fourth Proportional to 288,984.80, 433,477.20 and 177,010.40

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Solution

The fourth proportional to 288,984.80, 433,477.20 and 177,010.40 is: 265,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,984.80 : 433,477.20 = 177,010.40 : x
  2. Step 2: Convert to fraction form
    288,984.80/433,477.20 = 177,010.40/x
  3. Step 3: Cross multiply
    288,984.80x = 433,477.20 × 177,010.40
  4. Step 4: Simplify right side
    288,984.80x = 76,729,972,562.88
  5. Step 5: Solve for x
    x = 76,729,972,562.88/288,984.80
  6. Step 6: Final answer
    x = 265,515.60

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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.