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Finding the Fourth Proportional to 268,577.60, 402,210.30 and 201,655.40

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Solution

The fourth proportional to 268,577.60, 402,210.30 and 201,655.40 is: 301,990.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,577.60 : 402,210.30 = 201,655.40 : x
  2. Step 2: Convert to fraction form
    268,577.60/402,210.30 = 201,655.40/x
  3. Step 3: Cross multiply
    268,577.60x = 402,210.30 × 201,655.40
  4. Step 4: Simplify right side
    268,577.60x = 81,107,878,930.62
  5. Step 5: Solve for x
    x = 81,107,878,930.62/268,577.60
  6. Step 6: Final answer
    x = 301,990.48

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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.