Home / 208,945.02-288,345.26-113,451.72

Finding the Fourth Proportional to 208,945.02, 288,345.26 and 113,451.72

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Solution

The fourth proportional to 208,945.02, 288,345.26 and 113,451.72 is: 156,563.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,945.02 : 288,345.26 = 113,451.72 : x
  2. Step 2: Convert to fraction form
    208,945.02/288,345.26 = 113,451.72/x
  3. Step 3: Cross multiply
    208,945.02x = 288,345.26 × 113,451.72
  4. Step 4: Simplify right side
    208,945.02x = 32,713,265,700.85
  5. Step 5: Solve for x
    x = 32,713,265,700.85/208,945.02
  6. Step 6: Final answer
    x = 156,563.99

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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.