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Finding the Fourth Proportional to 349,323.60, 523,985.40 and 100,005.60

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Solution

The fourth proportional to 349,323.60, 523,985.40 and 100,005.60 is: 150,008.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,323.60 : 523,985.40 = 100,005.60 : x
  2. Step 2: Convert to fraction form
    349,323.60/523,985.40 = 100,005.60/x
  3. Step 3: Cross multiply
    349,323.60x = 523,985.40 × 100,005.60
  4. Step 4: Simplify right side
    349,323.60x = 52,401,474,318.24
  5. Step 5: Solve for x
    x = 52,401,474,318.24/349,323.60
  6. Step 6: Final answer
    x = 150,008.40

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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.