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Finding the Fourth Proportional to 251,445.70, 377,059.20 and 82,900.90

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Solution

The fourth proportional to 251,445.70, 377,059.20 and 82,900.90 is: 124,315.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,445.70 : 377,059.20 = 82,900.90 : x
  2. Step 2: Convert to fraction form
    251,445.70/377,059.20 = 82,900.90/x
  3. Step 3: Cross multiply
    251,445.70x = 377,059.20 × 82,900.90
  4. Step 4: Simplify right side
    251,445.70x = 31,258,547,033.28
  5. Step 5: Solve for x
    x = 31,258,547,033.28/251,445.70
  6. Step 6: Final answer
    x = 124,315.30

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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.