Home / 287,563.14-396,831.78-156,741.89

Finding the Fourth Proportional to 287,563.14, 396,831.78 and 156,741.89

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Solution

The fourth proportional to 287,563.14, 396,831.78 and 156,741.89 is: 216,300.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,563.14 : 396,831.78 = 156,741.89 : x
  2. Step 2: Convert to fraction form
    287,563.14/396,831.78 = 156,741.89/x
  3. Step 3: Cross multiply
    287,563.14x = 396,831.78 × 156,741.89
  4. Step 4: Simplify right side
    287,563.14x = 62,200,161,225.11
  5. Step 5: Solve for x
    x = 62,200,161,225.11/287,563.14
  6. Step 6: Final answer
    x = 216,300.88

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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.