Home / 257,820.11-355,834.56-150,390.22

Finding the Fourth Proportional to 257,820.11, 355,834.56 and 150,390.22

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Solution

The fourth proportional to 257,820.11, 355,834.56 and 150,390.22 is: 207,563.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,820.11 : 355,834.56 = 150,390.22 : x
  2. Step 2: Convert to fraction form
    257,820.11/355,834.56 = 150,390.22/x
  3. Step 3: Cross multiply
    257,820.11x = 355,834.56 × 150,390.22
  4. Step 4: Simplify right side
    257,820.11x = 53,514,037,762.00
  5. Step 5: Solve for x
    x = 53,514,037,762.00/257,820.11
  6. Step 6: Final answer
    x = 207,563.47

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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.