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Finding the Fourth Proportional to 288,050.80, 432,076.20 and 163,634.80

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Solution

The fourth proportional to 288,050.80, 432,076.20 and 163,634.80 is: 245,452.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,050.80 : 432,076.20 = 163,634.80 : x
  2. Step 2: Convert to fraction form
    288,050.80/432,076.20 = 163,634.80/x
  3. Step 3: Cross multiply
    288,050.80x = 432,076.20 × 163,634.80
  4. Step 4: Simplify right side
    288,050.80x = 70,702,702,571.76
  5. Step 5: Solve for x
    x = 70,702,702,571.76/288,050.80
  6. Step 6: Final answer
    x = 245,452.20

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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.