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Finding the Fourth Proportional to 347,395.71, 520,732.29 and 134,309.98

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Solution

The fourth proportional to 347,395.71, 520,732.29 and 134,309.98 is: 201,325.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,395.71 : 520,732.29 = 134,309.98 : x
  2. Step 2: Convert to fraction form
    347,395.71/520,732.29 = 134,309.98/x
  3. Step 3: Cross multiply
    347,395.71x = 520,732.29 × 134,309.98
  4. Step 4: Simplify right side
    347,395.71x = 69,939,543,455.25
  5. Step 5: Solve for x
    x = 69,939,543,455.25/347,395.71
  6. Step 6: Final answer
    x = 201,325.29

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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.