Home / 257,910.12-355,941.54-144,733.32

Finding the Fourth Proportional to 257,910.12, 355,941.54 and 144,733.32

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Solution

The fourth proportional to 257,910.12, 355,941.54 and 144,733.32 is: 199,746.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,910.12 : 355,941.54 = 144,733.32 : x
  2. Step 2: Convert to fraction form
    257,910.12/355,941.54 = 144,733.32/x
  3. Step 3: Cross multiply
    257,910.12x = 355,941.54 × 144,733.32
  4. Step 4: Simplify right side
    257,910.12x = 51,516,600,810.11
  5. Step 5: Solve for x
    x = 51,516,600,810.11/257,910.12
  6. Step 6: Final answer
    x = 199,746.33

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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.