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Finding the Fourth Proportional to 306,349.92, 422,590.32 and 183,810.60

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Solution

The fourth proportional to 306,349.92, 422,590.32 and 183,810.60 is: 253,555.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,349.92 : 422,590.32 = 183,810.60 : x
  2. Step 2: Convert to fraction form
    306,349.92/422,590.32 = 183,810.60/x
  3. Step 3: Cross multiply
    306,349.92x = 422,590.32 × 183,810.60
  4. Step 4: Simplify right side
    306,349.92x = 77,676,580,273.39
  5. Step 5: Solve for x
    x = 77,676,580,273.39/306,349.92
  6. Step 6: Final answer
    x = 253,555.09

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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.