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Finding the Fourth Proportional to 147,654.20, 221,481.30 and 146,779.40

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Solution

The fourth proportional to 147,654.20, 221,481.30 and 146,779.40 is: 220,169.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,654.20 : 221,481.30 = 146,779.40 : x
  2. Step 2: Convert to fraction form
    147,654.20/221,481.30 = 146,779.40/x
  3. Step 3: Cross multiply
    147,654.20x = 221,481.30 × 146,779.40
  4. Step 4: Simplify right side
    147,654.20x = 32,508,892,325.22
  5. Step 5: Solve for x
    x = 32,508,892,325.22/147,654.20
  6. Step 6: Final answer
    x = 220,169.10

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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.