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Finding the Fourth Proportional to 304,368.38, 420,029.80 and 170,232.38

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Solution

The fourth proportional to 304,368.38, 420,029.80 and 170,232.38 is: 234,921.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,368.38 : 420,029.80 = 170,232.38 : x
  2. Step 2: Convert to fraction form
    304,368.38/420,029.80 = 170,232.38/x
  3. Step 3: Cross multiply
    304,368.38x = 420,029.80 × 170,232.38
  4. Step 4: Simplify right side
    304,368.38x = 71,502,669,999.19
  5. Step 5: Solve for x
    x = 71,502,669,999.19/304,368.38
  6. Step 6: Final answer
    x = 234,921.48

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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.