Home / 257,911.48-355,918.02-144,734.20

Finding the Fourth Proportional to 257,911.48, 355,918.02 and 144,734.20

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Solution

The fourth proportional to 257,911.48, 355,918.02 and 144,734.20 is: 199,733.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,911.48 : 355,918.02 = 144,734.20 : x
  2. Step 2: Convert to fraction form
    257,911.48/355,918.02 = 144,734.20/x
  3. Step 3: Cross multiply
    257,911.48x = 355,918.02 × 144,734.20
  4. Step 4: Simplify right side
    257,911.48x = 51,513,509,890.28
  5. Step 5: Solve for x
    x = 51,513,509,890.28/257,911.48
  6. Step 6: Final answer
    x = 199,733.30

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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.