Home / 257,838.12-355,822.74-144,669.24

Finding the Fourth Proportional to 257,838.12, 355,822.74 and 144,669.24

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Solution

The fourth proportional to 257,838.12, 355,822.74 and 144,669.24 is: 199,646.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,838.12 : 355,822.74 = 144,669.24 : x
  2. Step 2: Convert to fraction form
    257,838.12/355,822.74 = 144,669.24/x
  3. Step 3: Cross multiply
    257,838.12x = 355,822.74 × 144,669.24
  4. Step 4: Simplify right side
    257,838.12x = 51,476,605,370.52
  5. Step 5: Solve for x
    x = 51,476,605,370.52/257,838.12
  6. Step 6: Final answer
    x = 199,646.99

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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.