Home / 208,832.31-288,188.80-113,339.05

Finding the Fourth Proportional to 208,832.31, 288,188.80 and 113,339.05

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Solution

The fourth proportional to 208,832.31, 288,188.80 and 113,339.05 is: 156,408.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,832.31 : 288,188.80 = 113,339.05 : x
  2. Step 2: Convert to fraction form
    208,832.31/288,188.80 = 113,339.05/x
  3. Step 3: Cross multiply
    208,832.31x = 288,188.80 × 113,339.05
  4. Step 4: Simplify right side
    208,832.31x = 32,663,043,808.82
  5. Step 5: Solve for x
    x = 32,663,043,808.82/208,832.31
  6. Step 6: Final answer
    x = 156,408.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.