Home / 285,241.64-393,618.46-156,155.36

Finding the Fourth Proportional to 285,241.64, 393,618.46 and 156,155.36

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Solution

The fourth proportional to 285,241.64, 393,618.46 and 156,155.36 is: 215,486.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,241.64 : 393,618.46 = 156,155.36 : x
  2. Step 2: Convert to fraction form
    285,241.64/393,618.46 = 156,155.36/x
  3. Step 3: Cross multiply
    285,241.64x = 393,618.46 × 156,155.36
  4. Step 4: Simplify right side
    285,241.64x = 61,465,632,323.95
  5. Step 5: Solve for x
    x = 61,465,632,323.95/285,241.64
  6. Step 6: Final answer
    x = 215,486.18

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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.