Home / 257,031.45-385,562.30-99,260.73

Finding the Fourth Proportional to 257,031.45, 385,562.30 and 99,260.73

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Solution

The fourth proportional to 257,031.45, 385,562.30 and 99,260.73 is: 148,896.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,031.45 : 385,562.30 = 99,260.73 : x
  2. Step 2: Convert to fraction form
    257,031.45/385,562.30 = 99,260.73/x
  3. Step 3: Cross multiply
    257,031.45x = 385,562.30 × 99,260.73
  4. Step 4: Simplify right side
    257,031.45x = 38,271,194,862.18
  5. Step 5: Solve for x
    x = 38,271,194,862.18/257,031.45
  6. Step 6: Final answer
    x = 148,896.93

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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.