Home / 292,511.60-438,652.20-105,426.80

Finding the Fourth Proportional to 292,511.60, 438,652.20 and 105,426.80

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Solution

The fourth proportional to 292,511.60, 438,652.20 and 105,426.80 is: 158,098.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,511.60 : 438,652.20 = 105,426.80 : x
  2. Step 2: Convert to fraction form
    292,511.60/438,652.20 = 105,426.80/x
  3. Step 3: Cross multiply
    292,511.60x = 438,652.20 × 105,426.80
  4. Step 4: Simplify right side
    292,511.60x = 46,245,697,758.96
  5. Step 5: Solve for x
    x = 46,245,697,758.96/292,511.60
  6. Step 6: Final answer
    x = 158,098.68

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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.