Home / 347,913.60-522,043.20-137,558.40

Finding the Fourth Proportional to 347,913.60, 522,043.20 and 137,558.40

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Solution

The fourth proportional to 347,913.60, 522,043.20 and 137,558.40 is: 206,405.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,913.60 : 522,043.20 = 137,558.40 : x
  2. Step 2: Convert to fraction form
    347,913.60/522,043.20 = 137,558.40/x
  3. Step 3: Cross multiply
    347,913.60x = 522,043.20 × 137,558.40
  4. Step 4: Simplify right side
    347,913.60x = 71,811,427,322.88
  5. Step 5: Solve for x
    x = 71,811,427,322.88/347,913.60
  6. Step 6: Final answer
    x = 206,405.92

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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.