Home / 292,821.60-439,232.40-272,085.60

Finding the Fourth Proportional to 292,821.60, 439,232.40 and 272,085.60

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Solution

The fourth proportional to 292,821.60, 439,232.40 and 272,085.60 is: 408,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,821.60 : 439,232.40 = 272,085.60 : x
  2. Step 2: Convert to fraction form
    292,821.60/439,232.40 = 272,085.60/x
  3. Step 3: Cross multiply
    292,821.60x = 439,232.40 × 272,085.60
  4. Step 4: Simplify right side
    292,821.60x = 119,508,811,093.44
  5. Step 5: Solve for x
    x = 119,508,811,093.44/292,821.60
  6. Step 6: Final answer
    x = 408,128.40

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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.