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Finding the Fourth Proportional to 286,528.59, 395,401.64 and 159,200.91

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Solution

The fourth proportional to 286,528.59, 395,401.64 and 159,200.91 is: 219,692.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,528.59 : 395,401.64 = 159,200.91 : x
  2. Step 2: Convert to fraction form
    286,528.59/395,401.64 = 159,200.91/x
  3. Step 3: Cross multiply
    286,528.59x = 395,401.64 × 159,200.91
  4. Step 4: Simplify right side
    286,528.59x = 62,948,300,107.49
  5. Step 5: Solve for x
    x = 62,948,300,107.49/286,528.59
  6. Step 6: Final answer
    x = 219,692.91

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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.