Home / 278,582.16-384,443.88-151,257.36

Finding the Fourth Proportional to 278,582.16, 384,443.88 and 151,257.36

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Solution

The fourth proportional to 278,582.16, 384,443.88 and 151,257.36 is: 208,735.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,582.16 : 384,443.88 = 151,257.36 : x
  2. Step 2: Convert to fraction form
    278,582.16/384,443.88 = 151,257.36/x
  3. Step 3: Cross multiply
    278,582.16x = 384,443.88 × 151,257.36
  4. Step 4: Simplify right side
    278,582.16x = 58,149,966,356.96
  5. Step 5: Solve for x
    x = 58,149,966,356.96/278,582.16
  6. Step 6: Final answer
    x = 208,735.43

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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.