Home / 272,436.27-408,720.02-85,447.77

Finding the Fourth Proportional to 272,436.27, 408,720.02 and 85,447.77

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Solution

The fourth proportional to 272,436.27, 408,720.02 and 85,447.77 is: 128,192.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,436.27 : 408,720.02 = 85,447.77 : x
  2. Step 2: Convert to fraction form
    272,436.27/408,720.02 = 85,447.77/x
  3. Step 3: Cross multiply
    272,436.27x = 408,720.02 × 85,447.77
  4. Step 4: Simplify right side
    272,436.27x = 34,924,214,263.36
  5. Step 5: Solve for x
    x = 34,924,214,263.36/272,436.27
  6. Step 6: Final answer
    x = 128,192.23

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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.