Home / 278,724.62-384,631.83-151,399.91

Finding the Fourth Proportional to 278,724.62, 384,631.83 and 151,399.91

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Solution

The fourth proportional to 278,724.62, 384,631.83 and 151,399.91 is: 208,927.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,724.62 : 384,631.83 = 151,399.91 : x
  2. Step 2: Convert to fraction form
    278,724.62/384,631.83 = 151,399.91/x
  3. Step 3: Cross multiply
    278,724.62x = 384,631.83 × 151,399.91
  4. Step 4: Simplify right side
    278,724.62x = 58,233,222,521.98
  5. Step 5: Solve for x
    x = 58,233,222,521.98/278,724.62
  6. Step 6: Final answer
    x = 208,927.45

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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.