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Finding the Fourth Proportional to 286,591.60, 395,478.32 and 159,259.60

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Solution

The fourth proportional to 286,591.60, 395,478.32 and 159,259.60 is: 219,768.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,591.60 : 395,478.32 = 159,259.60 : x
  2. Step 2: Convert to fraction form
    286,591.60/395,478.32 = 159,259.60/x
  3. Step 3: Cross multiply
    286,591.60x = 395,478.32 × 159,259.60
  4. Step 4: Simplify right side
    286,591.60x = 62,983,719,051.87
  5. Step 5: Solve for x
    x = 62,983,719,051.87/286,591.60
  6. Step 6: Final answer
    x = 219,768.20

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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.