Home / 278,585.49-384,426.96-157,699.06

Finding the Fourth Proportional to 278,585.49, 384,426.96 and 157,699.06

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Solution

The fourth proportional to 278,585.49, 384,426.96 and 157,699.06 is: 217,612.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,585.49 : 384,426.96 = 157,699.06 : x
  2. Step 2: Convert to fraction form
    278,585.49/384,426.96 = 157,699.06/x
  3. Step 3: Cross multiply
    278,585.49x = 384,426.96 × 157,699.06
  4. Step 4: Simplify right side
    278,585.49x = 60,623,770,230.66
  5. Step 5: Solve for x
    x = 60,623,770,230.66/278,585.49
  6. Step 6: Final answer
    x = 217,612.81

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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.