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Finding the Fourth Proportional to 349,389.80, 524,084.70 and 223,418.60

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Solution

The fourth proportional to 349,389.80, 524,084.70 and 223,418.60 is: 335,127.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,389.80 : 524,084.70 = 223,418.60 : x
  2. Step 2: Convert to fraction form
    349,389.80/524,084.70 = 223,418.60/x
  3. Step 3: Cross multiply
    349,389.80x = 524,084.70 × 223,418.60
  4. Step 4: Simplify right side
    349,389.80x = 117,090,269,955.42
  5. Step 5: Solve for x
    x = 117,090,269,955.42/349,389.80
  6. Step 6: Final answer
    x = 335,127.90

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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.