Home / 257,098.10-385,647.15-173,117.30

Finding the Fourth Proportional to 257,098.10, 385,647.15 and 173,117.30

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Solution

The fourth proportional to 257,098.10, 385,647.15 and 173,117.30 is: 259,675.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,098.10 : 385,647.15 = 173,117.30 : x
  2. Step 2: Convert to fraction form
    257,098.10/385,647.15 = 173,117.30/x
  3. Step 3: Cross multiply
    257,098.10x = 385,647.15 × 173,117.30
  4. Step 4: Simplify right side
    257,098.10x = 66,762,193,360.70
  5. Step 5: Solve for x
    x = 66,762,193,360.70/257,098.10
  6. Step 6: Final answer
    x = 259,675.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.