Home / 307,525.50-461,366.01-85,909.50

Finding the Fourth Proportional to 307,525.50, 461,366.01 and 85,909.50

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Solution

The fourth proportional to 307,525.50, 461,366.01 and 85,909.50 is: 128,885.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,525.50 : 461,366.01 = 85,909.50 : x
  2. Step 2: Convert to fraction form
    307,525.50/461,366.01 = 85,909.50/x
  3. Step 3: Cross multiply
    307,525.50x = 461,366.01 × 85,909.50
  4. Step 4: Simplify right side
    307,525.50x = 39,635,723,236.10
  5. Step 5: Solve for x
    x = 39,635,723,236.10/307,525.50
  6. Step 6: Final answer
    x = 128,885.97

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1.5x scale

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.