Home / 442,140.90-663,320.70-142,653.12

Finding the Fourth Proportional to 442,140.90, 663,320.70 and 142,653.12

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Solution

The fourth proportional to 442,140.90, 663,320.70 and 142,653.12 is: 214,014.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,140.90 : 663,320.70 = 142,653.12 : x
  2. Step 2: Convert to fraction form
    442,140.90/663,320.70 = 142,653.12/x
  3. Step 3: Cross multiply
    442,140.90x = 663,320.70 × 142,653.12
  4. Step 4: Simplify right side
    442,140.90x = 94,624,767,415.58
  5. Step 5: Solve for x
    x = 94,624,767,415.58/442,140.90
  6. Step 6: Final answer
    x = 214,014.96

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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.