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Finding the Fourth Proportional to 347,393.71, 520,729.29 and 134,307.98

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Solution

The fourth proportional to 347,393.71, 520,729.29 and 134,307.98 is: 201,322.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,393.71 : 520,729.29 = 134,307.98 : x
  2. Step 2: Convert to fraction form
    347,393.71/520,729.29 = 134,307.98/x
  3. Step 3: Cross multiply
    347,393.71x = 520,729.29 × 134,307.98
  4. Step 4: Simplify right side
    347,393.71x = 69,938,099,066.73
  5. Step 5: Solve for x
    x = 69,938,099,066.73/347,393.71
  6. Step 6: Final answer
    x = 201,322.30

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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.