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Finding the Fourth Proportional to 304,459.68, 420,143.99 and 168,499.36

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Solution

The fourth proportional to 304,459.68, 420,143.99 and 168,499.36 is: 232,523.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,459.68 : 420,143.99 = 168,499.36 : x
  2. Step 2: Convert to fraction form
    304,459.68/420,143.99 = 168,499.36/x
  3. Step 3: Cross multiply
    304,459.68x = 420,143.99 × 168,499.36
  4. Step 4: Simplify right side
    304,459.68x = 70,793,991,216.12
  5. Step 5: Solve for x
    x = 70,793,991,216.12/304,459.68
  6. Step 6: Final answer
    x = 232,523.37

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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.