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Finding the Fourth Proportional to 260,031.60, 390,047.40 and 181,234.80

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Solution

The fourth proportional to 260,031.60, 390,047.40 and 181,234.80 is: 271,852.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,031.60 : 390,047.40 = 181,234.80 : x
  2. Step 2: Convert to fraction form
    260,031.60/390,047.40 = 181,234.80/x
  3. Step 3: Cross multiply
    260,031.60x = 390,047.40 × 181,234.80
  4. Step 4: Simplify right side
    260,031.60x = 70,690,162,529.52
  5. Step 5: Solve for x
    x = 70,690,162,529.52/260,031.60
  6. Step 6: Final answer
    x = 271,852.20

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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.