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Finding the Fourth Proportional to 430,963.52, 594,728.16 and 239,979.20

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Solution

The fourth proportional to 430,963.52, 594,728.16 and 239,979.20 is: 331,170.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,963.52 : 594,728.16 = 239,979.20 : x
  2. Step 2: Convert to fraction form
    430,963.52/594,728.16 = 239,979.20/x
  3. Step 3: Cross multiply
    430,963.52x = 594,728.16 × 239,979.20
  4. Step 4: Simplify right side
    430,963.52x = 142,722,388,054.27
  5. Step 5: Solve for x
    x = 142,722,388,054.27/430,963.52
  6. Step 6: Final answer
    x = 331,170.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.