Home / 257,451.40-355,263.54-144,252.28

Finding the Fourth Proportional to 257,451.40, 355,263.54 and 144,252.28

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Solution

The fourth proportional to 257,451.40, 355,263.54 and 144,252.28 is: 199,057.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,451.40 : 355,263.54 = 144,252.28 : x
  2. Step 2: Convert to fraction form
    257,451.40/355,263.54 = 144,252.28/x
  3. Step 3: Cross multiply
    257,451.40x = 355,263.54 × 144,252.28
  4. Step 4: Simplify right side
    257,451.40x = 51,247,575,645.87
  5. Step 5: Solve for x
    x = 51,247,575,645.87/257,451.40
  6. Step 6: Final answer
    x = 199,057.28

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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.