Home / 442,827.60-664,079.40-143,386.80

Finding the Fourth Proportional to 442,827.60, 664,079.40 and 143,386.80

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Solution

The fourth proportional to 442,827.60, 664,079.40 and 143,386.80 is: 215,027.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,827.60 : 664,079.40 = 143,386.80 : x
  2. Step 2: Convert to fraction form
    442,827.60/664,079.40 = 143,386.80/x
  3. Step 3: Cross multiply
    442,827.60x = 664,079.40 × 143,386.80
  4. Step 4: Simplify right side
    442,827.60x = 95,220,220,111.92
  5. Step 5: Solve for x
    x = 95,220,220,111.92/442,827.60
  6. Step 6: Final answer
    x = 215,027.74

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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.