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Finding the Fourth Proportional to 245,437.73, 368,137.12 and 87,649.73

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Solution

The fourth proportional to 245,437.73, 368,137.12 and 87,649.73 is: 131,467.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,437.73 : 368,137.12 = 87,649.73 : x
  2. Step 2: Convert to fraction form
    245,437.73/368,137.12 = 87,649.73/x
  3. Step 3: Cross multiply
    245,437.73x = 368,137.12 × 87,649.73
  4. Step 4: Simplify right side
    245,437.73x = 32,267,119,170.98
  5. Step 5: Solve for x
    x = 32,267,119,170.98/245,437.73
  6. Step 6: Final answer
    x = 131,467.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.