Home / 278,848.20-384,809.20-157,989.24

Finding the Fourth Proportional to 278,848.20, 384,809.20 and 157,989.24

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Solution

The fourth proportional to 278,848.20, 384,809.20 and 157,989.24 is: 218,024.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,848.20 : 384,809.20 = 157,989.24 : x
  2. Step 2: Convert to fraction form
    278,848.20/384,809.20 = 157,989.24/x
  3. Step 3: Cross multiply
    278,848.20x = 384,809.20 × 157,989.24
  4. Step 4: Simplify right side
    278,848.20x = 60,795,713,053.01
  5. Step 5: Solve for x
    x = 60,795,713,053.01/278,848.20
  6. Step 6: Final answer
    x = 218,024.41

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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.