Home / 209,072.48-288,505.80-113,577.12

Finding the Fourth Proportional to 209,072.48, 288,505.80 and 113,577.12

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Solution

The fourth proportional to 209,072.48, 288,505.80 and 113,577.12 is: 156,728.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,072.48 : 288,505.80 = 113,577.12 : x
  2. Step 2: Convert to fraction form
    209,072.48/288,505.80 = 113,577.12/x
  3. Step 3: Cross multiply
    209,072.48x = 288,505.80 × 113,577.12
  4. Step 4: Simplify right side
    209,072.48x = 32,767,657,867.30
  5. Step 5: Solve for x
    x = 32,767,657,867.30/209,072.48
  6. Step 6: Final answer
    x = 156,728.70

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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.