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Finding the Fourth Proportional to 202,979.80, 304,469.70 and 97,809.40

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Solution

The fourth proportional to 202,979.80, 304,469.70 and 97,809.40 is: 146,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,979.80 : 304,469.70 = 97,809.40 : x
  2. Step 2: Convert to fraction form
    202,979.80/304,469.70 = 97,809.40/x
  3. Step 3: Cross multiply
    202,979.80x = 304,469.70 × 97,809.40
  4. Step 4: Simplify right side
    202,979.80x = 29,779,998,675.18
  5. Step 5: Solve for x
    x = 29,779,998,675.18/202,979.80
  6. Step 6: Final answer
    x = 146,714.10

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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.