Home / 278,429.64-384,211.62-163,712.94

Finding the Fourth Proportional to 278,429.64, 384,211.62 and 163,712.94

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Solution

The fourth proportional to 278,429.64, 384,211.62 and 163,712.94 is: 225,911.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,429.64 : 384,211.62 = 163,712.94 : x
  2. Step 2: Convert to fraction form
    278,429.64/384,211.62 = 163,712.94/x
  3. Step 3: Cross multiply
    278,429.64x = 384,211.62 × 163,712.94
  4. Step 4: Simplify right side
    278,429.64x = 62,900,413,892.36
  5. Step 5: Solve for x
    x = 62,900,413,892.36/278,429.64
  6. Step 6: Final answer
    x = 225,911.34

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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.