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Finding the Fourth Proportional to 288,203.20, 432,560.80 and 169,726.40

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Solution

The fourth proportional to 288,203.20, 432,560.80 and 169,726.40 is: 254,740.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,203.20 : 432,560.80 = 169,726.40 : x
  2. Step 2: Convert to fraction form
    288,203.20/432,560.80 = 169,726.40/x
  3. Step 3: Cross multiply
    288,203.20x = 432,560.80 × 169,726.40
  4. Step 4: Simplify right side
    288,203.20x = 73,416,987,365.12
  5. Step 5: Solve for x
    x = 73,416,987,365.12/288,203.20
  6. Step 6: Final answer
    x = 254,740.36

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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.