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Finding the Fourth Proportional to 286,894.53, 395,908.83 and 159,567.39

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Solution

The fourth proportional to 286,894.53, 395,908.83 and 159,567.39 is: 220,199.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,894.53 : 395,908.83 = 159,567.39 : x
  2. Step 2: Convert to fraction form
    286,894.53/395,908.83 = 159,567.39/x
  3. Step 3: Cross multiply
    286,894.53x = 395,908.83 × 159,567.39
  4. Step 4: Simplify right side
    286,894.53x = 63,174,138,681.05
  5. Step 5: Solve for x
    x = 63,174,138,681.05/286,894.53
  6. Step 6: Final answer
    x = 220,199.87

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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.