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Finding the Fourth Proportional to 283,080.01, 390,654.27 and 154,020.02

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Solution

The fourth proportional to 283,080.01, 390,654.27 and 154,020.02 is: 212,549.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,080.01 : 390,654.27 = 154,020.02 : x
  2. Step 2: Convert to fraction form
    283,080.01/390,654.27 = 154,020.02/x
  3. Step 3: Cross multiply
    283,080.01x = 390,654.27 × 154,020.02
  4. Step 4: Simplify right side
    283,080.01x = 60,168,575,755.11
  5. Step 5: Solve for x
    x = 60,168,575,755.11/283,080.01
  6. Step 6: Final answer
    x = 212,549.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.