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Finding the Fourth Proportional to 286,366.96, 395,237.88 and 165,491.56

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Solution

The fourth proportional to 286,366.96, 395,237.88 and 165,491.56 is: 228,408.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,366.96 : 395,237.88 = 165,491.56 : x
  2. Step 2: Convert to fraction form
    286,366.96/395,237.88 = 165,491.56/x
  3. Step 3: Cross multiply
    286,366.96x = 395,237.88 × 165,491.56
  4. Step 4: Simplify right side
    286,366.96x = 65,408,533,332.29
  5. Step 5: Solve for x
    x = 65,408,533,332.29/286,366.96
  6. Step 6: Final answer
    x = 228,408.10

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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.