Home / 217,948.08-300,902.54-172,808.40

Finding the Fourth Proportional to 217,948.08, 300,902.54 and 172,808.40

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Solution

The fourth proportional to 217,948.08, 300,902.54 and 172,808.40 is: 238,581.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,948.08 : 300,902.54 = 172,808.40 : x
  2. Step 2: Convert to fraction form
    217,948.08/300,902.54 = 172,808.40/x
  3. Step 3: Cross multiply
    217,948.08x = 300,902.54 × 172,808.40
  4. Step 4: Simplify right side
    217,948.08x = 51,998,485,629.29
  5. Step 5: Solve for x
    x = 51,998,485,629.29/217,948.08
  6. Step 6: Final answer
    x = 238,581.99

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1.5x scale

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.