Home / 285,345.72-393,761.39-156,259.14

Finding the Fourth Proportional to 285,345.72, 393,761.39 and 156,259.14

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Solution

The fourth proportional to 285,345.72, 393,761.39 and 156,259.14 is: 215,629.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,345.72 : 393,761.39 = 156,259.14 : x
  2. Step 2: Convert to fraction form
    285,345.72/393,761.39 = 156,259.14/x
  3. Step 3: Cross multiply
    285,345.72x = 393,761.39 × 156,259.14
  4. Step 4: Simplify right side
    285,345.72x = 61,528,816,166.60
  5. Step 5: Solve for x
    x = 61,528,816,166.60/285,345.72
  6. Step 6: Final answer
    x = 215,629.01

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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.