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Finding the Fourth Proportional to 445,766.16, 668,652.48 and 130,442.88

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Solution

The fourth proportional to 445,766.16, 668,652.48 and 130,442.88 is: 195,665.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,766.16 : 668,652.48 = 130,442.88 : x
  2. Step 2: Convert to fraction form
    445,766.16/668,652.48 = 130,442.88/x
  3. Step 3: Cross multiply
    445,766.16x = 668,652.48 × 130,442.88
  4. Step 4: Simplify right side
    445,766.16x = 87,220,955,210.34
  5. Step 5: Solve for x
    x = 87,220,955,210.34/445,766.16
  6. Step 6: Final answer
    x = 195,665.27

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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.