Home / 257,931.61-355,360.10-199,587.73

Finding the Fourth Proportional to 257,931.61, 355,360.10 and 199,587.73

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Solution

The fourth proportional to 257,931.61, 355,360.10 and 199,587.73 is: 274,977.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,931.61 : 355,360.10 = 199,587.73 : x
  2. Step 2: Convert to fraction form
    257,931.61/355,360.10 = 199,587.73/x
  3. Step 3: Cross multiply
    257,931.61x = 355,360.10 × 199,587.73
  4. Step 4: Simplify right side
    257,931.61x = 70,925,514,693.63
  5. Step 5: Solve for x
    x = 70,925,514,693.63/257,931.61
  6. Step 6: Final answer
    x = 274,977.99

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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.