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Finding the Fourth Proportional to 304,853.36, 420,691.95 and 183,999.74

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Solution

The fourth proportional to 304,853.36, 420,691.95 and 183,999.74 is: 253,916.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,853.36 : 420,691.95 = 183,999.74 : x
  2. Step 2: Convert to fraction form
    304,853.36/420,691.95 = 183,999.74/x
  3. Step 3: Cross multiply
    304,853.36x = 420,691.95 × 183,999.74
  4. Step 4: Simplify right side
    304,853.36x = 77,407,210,471.82
  5. Step 5: Solve for x
    x = 77,407,210,471.82/304,853.36
  6. Step 6: Final answer
    x = 253,916.21

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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.