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Finding the Fourth Proportional to 250,507.68, 345,722.40 and 137,352.48

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Solution

The fourth proportional to 250,507.68, 345,722.40 and 137,352.48 is: 189,558.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,507.68 : 345,722.40 = 137,352.48 : x
  2. Step 2: Convert to fraction form
    250,507.68/345,722.40 = 137,352.48/x
  3. Step 3: Cross multiply
    250,507.68x = 345,722.40 × 137,352.48
  4. Step 4: Simplify right side
    250,507.68x = 47,485,829,031.55
  5. Step 5: Solve for x
    x = 47,485,829,031.55/250,507.68
  6. Step 6: Final answer
    x = 189,558.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.