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Finding the Fourth Proportional to 310,808.92, 428,917.98 and 183,547.30

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Solution

The fourth proportional to 310,808.92, 428,917.98 and 183,547.30 is: 253,296.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,808.92 : 428,917.98 = 183,547.30 : x
  2. Step 2: Convert to fraction form
    310,808.92/428,917.98 = 183,547.30/x
  3. Step 3: Cross multiply
    310,808.92x = 428,917.98 × 183,547.30
  4. Step 4: Simplify right side
    310,808.92x = 78,726,737,150.45
  5. Step 5: Solve for x
    x = 78,726,737,150.45/310,808.92
  6. Step 6: Final answer
    x = 253,296.26

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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.