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Finding the Fourth Proportional to 435,285.60, 653,446.80 and 245,896.80

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Solution

The fourth proportional to 435,285.60, 653,446.80 and 245,896.80 is: 369,138.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,285.60 : 653,446.80 = 245,896.80 : x
  2. Step 2: Convert to fraction form
    435,285.60/653,446.80 = 245,896.80/x
  3. Step 3: Cross multiply
    435,285.60x = 653,446.80 × 245,896.80
  4. Step 4: Simplify right side
    435,285.60x = 160,680,477,090.24
  5. Step 5: Solve for x
    x = 160,680,477,090.24/435,285.60
  6. Step 6: Final answer
    x = 369,138.05

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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.