Home / 278,412.45-384,209.17-151,088.04

Finding the Fourth Proportional to 278,412.45, 384,209.17 and 151,088.04

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Solution

The fourth proportional to 278,412.45, 384,209.17 and 151,088.04 is: 208,501.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,412.45 : 384,209.17 = 151,088.04 : x
  2. Step 2: Convert to fraction form
    278,412.45/384,209.17 = 151,088.04/x
  3. Step 3: Cross multiply
    278,412.45x = 384,209.17 × 151,088.04
  4. Step 4: Simplify right side
    278,412.45x = 58,049,410,067.61
  5. Step 5: Solve for x
    x = 58,049,410,067.61/278,412.45
  6. Step 6: Final answer
    x = 208,501.49

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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.