Home / 257,398.02-355,209.03-144,221.58

Finding the Fourth Proportional to 257,398.02, 355,209.03 and 144,221.58

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Solution

The fourth proportional to 257,398.02, 355,209.03 and 144,221.58 is: 199,025.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,398.02 : 355,209.03 = 144,221.58 : x
  2. Step 2: Convert to fraction form
    257,398.02/355,209.03 = 144,221.58/x
  3. Step 3: Cross multiply
    257,398.02x = 355,209.03 × 144,221.58
  4. Step 4: Simplify right side
    257,398.02x = 51,228,807,536.87
  5. Step 5: Solve for x
    x = 51,228,807,536.87/257,398.02
  6. Step 6: Final answer
    x = 199,025.65

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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.