Home / 442,947.90-663,984.45-218,124.30

Finding the Fourth Proportional to 442,947.90, 663,984.45 and 218,124.30

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Solution

The fourth proportional to 442,947.90, 663,984.45 and 218,124.30 is: 326,971.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,947.90 : 663,984.45 = 218,124.30 : x
  2. Step 2: Convert to fraction form
    442,947.90/663,984.45 = 218,124.30/x
  3. Step 3: Cross multiply
    442,947.90x = 663,984.45 × 218,124.30
  4. Step 4: Simplify right side
    442,947.90x = 144,831,143,367.14
  5. Step 5: Solve for x
    x = 144,831,143,367.14/442,947.90
  6. Step 6: Final answer
    x = 326,971.06

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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.