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Finding the Fourth Proportional to 429,150.80, 644,017.80 and 239,610.80

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Solution

The fourth proportional to 429,150.80, 644,017.80 and 239,610.80 is: 359,579.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,150.80 : 644,017.80 = 239,610.80 : x
  2. Step 2: Convert to fraction form
    429,150.80/644,017.80 = 239,610.80/x
  3. Step 3: Cross multiply
    429,150.80x = 644,017.80 × 239,610.80
  4. Step 4: Simplify right side
    429,150.80x = 154,313,620,272.24
  5. Step 5: Solve for x
    x = 154,313,620,272.24/429,150.80
  6. Step 6: Final answer
    x = 359,579.01

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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.