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Finding the Fourth Proportional to 349,323.80, 523,985.70 and 243,035.60

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Solution

The fourth proportional to 349,323.80, 523,985.70 and 243,035.60 is: 364,553.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,323.80 : 523,985.70 = 243,035.60 : x
  2. Step 2: Convert to fraction form
    349,323.80/523,985.70 = 243,035.60/x
  3. Step 3: Cross multiply
    349,323.80x = 523,985.70 × 243,035.60
  4. Step 4: Simplify right side
    349,323.80x = 127,347,178,990.92
  5. Step 5: Solve for x
    x = 127,347,178,990.92/349,323.80
  6. Step 6: Final answer
    x = 364,553.40

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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.