Home / 442,826.40-664,239.60-162,307.20

Finding the Fourth Proportional to 442,826.40, 664,239.60 and 162,307.20

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Solution

The fourth proportional to 442,826.40, 664,239.60 and 162,307.20 is: 243,460.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,826.40 : 664,239.60 = 162,307.20 : x
  2. Step 2: Convert to fraction form
    442,826.40/664,239.60 = 162,307.20/x
  3. Step 3: Cross multiply
    442,826.40x = 664,239.60 × 162,307.20
  4. Step 4: Simplify right side
    442,826.40x = 107,810,869,605.12
  5. Step 5: Solve for x
    x = 107,810,869,605.12/442,826.40
  6. Step 6: Final answer
    x = 243,460.80

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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.