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Finding the Fourth Proportional to 351,310, 527,031.60 and 140,964.52

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Solution

The fourth proportional to 351,310, 527,031.60 and 140,964.52 is: 211,473.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,310 : 527,031.60 = 140,964.52 : x
  2. Step 2: Convert to fraction form
    351,310/527,031.60 = 140,964.52/x
  3. Step 3: Cross multiply
    351,310x = 527,031.60 × 140,964.52
  4. Step 4: Simplify right side
    351,310x = 74,292,756,518.83
  5. Step 5: Solve for x
    x = 74,292,756,518.83/351,310
  6. Step 6: Final answer
    x = 211,473.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.