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Finding the Fourth Proportional to 286,692.48, 395,587.80 and 159,350.76

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Solution

The fourth proportional to 286,692.48, 395,587.80 and 159,350.76 is: 219,877.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,692.48 : 395,587.80 = 159,350.76 : x
  2. Step 2: Convert to fraction form
    286,692.48/395,587.80 = 159,350.76/x
  3. Step 3: Cross multiply
    286,692.48x = 395,587.80 × 159,350.76
  4. Step 4: Simplify right side
    286,692.48x = 63,037,216,576.73
  5. Step 5: Solve for x
    x = 63,037,216,576.73/286,692.48
  6. Step 6: Final answer
    x = 219,877.47

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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.