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Finding the Fourth Proportional to 441,586.80, 662,428.80 and 142,016.40

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Solution

The fourth proportional to 441,586.80, 662,428.80 and 142,016.40 is: 213,040.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,586.80 : 662,428.80 = 142,016.40 : x
  2. Step 2: Convert to fraction form
    441,586.80/662,428.80 = 142,016.40/x
  3. Step 3: Cross multiply
    441,586.80x = 662,428.80 × 142,016.40
  4. Step 4: Simplify right side
    441,586.80x = 94,075,753,432.32
  5. Step 5: Solve for x
    x = 94,075,753,432.32/441,586.80
  6. Step 6: Final answer
    x = 213,040.23

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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.