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Finding the Fourth Proportional to 304,617.92, 420,359.01 and 168,642.32

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Solution

The fourth proportional to 304,617.92, 420,359.01 and 168,642.32 is: 232,718.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,617.92 : 420,359.01 = 168,642.32 : x
  2. Step 2: Convert to fraction form
    304,617.92/420,359.01 = 168,642.32/x
  3. Step 3: Cross multiply
    304,617.92x = 420,359.01 × 168,642.32
  4. Step 4: Simplify right side
    304,617.92x = 70,890,318,679.30
  5. Step 5: Solve for x
    x = 70,890,318,679.30/304,617.92
  6. Step 6: Final answer
    x = 232,718.81

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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.