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Finding the Fourth Proportional to 426,843.24, 640,264.88 and 146,362.92

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Solution

The fourth proportional to 426,843.24, 640,264.88 and 146,362.92 is: 219,544.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,843.24 : 640,264.88 = 146,362.92 : x
  2. Step 2: Convert to fraction form
    426,843.24/640,264.88 = 146,362.92/x
  3. Step 3: Cross multiply
    426,843.24x = 640,264.88 × 146,362.92
  4. Step 4: Simplify right side
    426,843.24x = 93,711,037,410.25
  5. Step 5: Solve for x
    x = 93,711,037,410.25/426,843.24
  6. Step 6: Final answer
    x = 219,544.39

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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.