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Finding the Fourth Proportional to 286,873.71, 395,899.74 and 159,546.57

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Solution

The fourth proportional to 286,873.71, 395,899.74 and 159,546.57 is: 220,182.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,873.71 : 395,899.74 = 159,546.57 : x
  2. Step 2: Convert to fraction form
    286,873.71/395,899.74 = 159,546.57/x
  3. Step 3: Cross multiply
    286,873.71x = 395,899.74 × 159,546.57
  4. Step 4: Simplify right side
    286,873.71x = 63,164,445,580.89
  5. Step 5: Solve for x
    x = 63,164,445,580.89/286,873.71
  6. Step 6: Final answer
    x = 220,182.06

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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.