Home / 272,558.64-408,877.02-72,885.72

Finding the Fourth Proportional to 272,558.64, 408,877.02 and 72,885.72

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Solution

The fourth proportional to 272,558.64, 408,877.02 and 72,885.72 is: 109,339.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,558.64 : 408,877.02 = 72,885.72 : x
  2. Step 2: Convert to fraction form
    272,558.64/408,877.02 = 72,885.72/x
  3. Step 3: Cross multiply
    272,558.64x = 408,877.02 × 72,885.72
  4. Step 4: Simplify right side
    272,558.64x = 29,801,295,994.15
  5. Step 5: Solve for x
    x = 29,801,295,994.15/272,558.64
  6. Step 6: Final answer
    x = 109,339.03

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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.