Home / 286,784.71-395,754.52-157,723.05

Finding the Fourth Proportional to 286,784.71, 395,754.52 and 157,723.05

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Solution

The fourth proportional to 286,784.71, 395,754.52 and 157,723.05 is: 217,653.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,784.71 : 395,754.52 = 157,723.05 : x
  2. Step 2: Convert to fraction form
    286,784.71/395,754.52 = 157,723.05/x
  3. Step 3: Cross multiply
    286,784.71x = 395,754.52 × 157,723.05
  4. Step 4: Simplify right side
    286,784.71x = 62,419,607,966.91
  5. Step 5: Solve for x
    x = 62,419,607,966.91/286,784.71
  6. Step 6: Final answer
    x = 217,653.20

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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.