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Finding the Fourth Proportional to 349,425.60, 524,138.40 and 323,764.80

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Solution

The fourth proportional to 349,425.60, 524,138.40 and 323,764.80 is: 485,647.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,425.60 : 524,138.40 = 323,764.80 : x
  2. Step 2: Convert to fraction form
    349,425.60/524,138.40 = 323,764.80/x
  3. Step 3: Cross multiply
    349,425.60x = 524,138.40 × 323,764.80
  4. Step 4: Simplify right side
    349,425.60x = 169,697,564,248.32
  5. Step 5: Solve for x
    x = 169,697,564,248.32/349,425.60
  6. Step 6: Final answer
    x = 485,647.20

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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.