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Finding the Fourth Proportional to 260,098.20, 390,147.30 and 242,602.20

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Solution

The fourth proportional to 260,098.20, 390,147.30 and 242,602.20 is: 363,903.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,098.20 : 390,147.30 = 242,602.20 : x
  2. Step 2: Convert to fraction form
    260,098.20/390,147.30 = 242,602.20/x
  3. Step 3: Cross multiply
    260,098.20x = 390,147.30 × 242,602.20
  4. Step 4: Simplify right side
    260,098.20x = 94,650,593,304.06
  5. Step 5: Solve for x
    x = 94,650,593,304.06/260,098.20
  6. Step 6: Final answer
    x = 363,903.30

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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.