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Finding the Fourth Proportional to 460,057.20, 690,085.80 and 144,513.60

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Solution

The fourth proportional to 460,057.20, 690,085.80 and 144,513.60 is: 216,770.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,057.20 : 690,085.80 = 144,513.60 : x
  2. Step 2: Convert to fraction form
    460,057.20/690,085.80 = 144,513.60/x
  3. Step 3: Cross multiply
    460,057.20x = 690,085.80 × 144,513.60
  4. Step 4: Simplify right side
    460,057.20x = 99,726,783,266.88
  5. Step 5: Solve for x
    x = 99,726,783,266.88/460,057.20
  6. Step 6: Final answer
    x = 216,770.40

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