Home / 257,970.12-355,979.25-144,771

Finding the Fourth Proportional to 257,970.12, 355,979.25 and 144,771

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Solution

The fourth proportional to 257,970.12, 355,979.25 and 144,771 is: 199,773.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,970.12 : 355,979.25 = 144,771 : x
  2. Step 2: Convert to fraction form
    257,970.12/355,979.25 = 144,771/x
  3. Step 3: Cross multiply
    257,970.12x = 355,979.25 × 144,771
  4. Step 4: Simplify right side
    257,970.12x = 51,535,472,001.75
  5. Step 5: Solve for x
    x = 51,535,472,001.75/257,970.12
  6. Step 6: Final answer
    x = 199,773.03

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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.