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Finding the Fourth Proportional to 147,479.28, 221,219.64 and 36,671.28

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Solution

The fourth proportional to 147,479.28, 221,219.64 and 36,671.28 is: 55,007.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,479.28 : 221,219.64 = 36,671.28 : x
  2. Step 2: Convert to fraction form
    147,479.28/221,219.64 = 36,671.28/x
  3. Step 3: Cross multiply
    147,479.28x = 221,219.64 × 36,671.28
  4. Step 4: Simplify right side
    147,479.28x = 8,112,407,359.94
  5. Step 5: Solve for x
    x = 8,112,407,359.94/147,479.28
  6. Step 6: Final answer
    x = 55,007.10

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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.