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Finding the Fourth Proportional to 239,485.88, 330,366.83 and 148,807.39

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Solution

The fourth proportional to 239,485.88, 330,366.83 and 148,807.39 is: 205,277.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,485.88 : 330,366.83 = 148,807.39 : x
  2. Step 2: Convert to fraction form
    239,485.88/330,366.83 = 148,807.39/x
  3. Step 3: Cross multiply
    239,485.88x = 330,366.83 × 148,807.39
  4. Step 4: Simplify right side
    239,485.88x = 49,161,025,714.87
  5. Step 5: Solve for x
    x = 49,161,025,714.87/239,485.88
  6. Step 6: Final answer
    x = 205,277.35

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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.