Home / 347,394.10-520,729.86-134,308.36

Finding the Fourth Proportional to 347,394.10, 520,729.86 and 134,308.36

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Solution

The fourth proportional to 347,394.10, 520,729.86 and 134,308.36 is: 201,322.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,394.10 : 520,729.86 = 134,308.36 : x
  2. Step 2: Convert to fraction form
    347,394.10/520,729.86 = 134,308.36/x
  3. Step 3: Cross multiply
    347,394.10x = 520,729.86 × 134,308.36
  4. Step 4: Simplify right side
    347,394.10x = 69,938,372,533.58
  5. Step 5: Solve for x
    x = 69,938,372,533.58/347,394.10
  6. Step 6: Final answer
    x = 201,322.86

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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.