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Finding the Fourth Proportional to 304,520.30, 420,227.28 and 168,554.51

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Solution

The fourth proportional to 304,520.30, 420,227.28 and 168,554.51 is: 232,599.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,520.30 : 420,227.28 = 168,554.51 : x
  2. Step 2: Convert to fraction form
    304,520.30/420,227.28 = 168,554.51/x
  3. Step 3: Cross multiply
    304,520.30x = 420,227.28 × 168,554.51
  4. Step 4: Simplify right side
    304,520.30x = 70,831,201,167.90
  5. Step 5: Solve for x
    x = 70,831,201,167.90/304,520.30
  6. Step 6: Final answer
    x = 232,599.28

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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.