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Finding the Fourth Proportional to 304,504.37, 420,209.75 and 168,530.20

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Solution

The fourth proportional to 304,504.37, 420,209.75 and 168,530.20 is: 232,568.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,504.37 : 420,209.75 = 168,530.20 : x
  2. Step 2: Convert to fraction form
    304,504.37/420,209.75 = 168,530.20/x
  3. Step 3: Cross multiply
    304,504.37x = 420,209.75 × 168,530.20
  4. Step 4: Simplify right side
    304,504.37x = 70,818,033,209.45
  5. Step 5: Solve for x
    x = 70,818,033,209.45/304,504.37
  6. Step 6: Final answer
    x = 232,568.20

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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.