Home / 257,419.12-355,237.74-144,241.86

Finding the Fourth Proportional to 257,419.12, 355,237.74 and 144,241.86

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Solution

The fourth proportional to 257,419.12, 355,237.74 and 144,241.86 is: 199,053.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,419.12 : 355,237.74 = 144,241.86 : x
  2. Step 2: Convert to fraction form
    257,419.12/355,237.74 = 144,241.86/x
  3. Step 3: Cross multiply
    257,419.12x = 355,237.74 × 144,241.86
  4. Step 4: Simplify right side
    257,419.12x = 51,240,152,359.80
  5. Step 5: Solve for x
    x = 51,240,152,359.80/257,419.12
  6. Step 6: Final answer
    x = 199,053.41

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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.