Home / 209,071.32-288,518.67-113,578.08

Finding the Fourth Proportional to 209,071.32, 288,518.67 and 113,578.08

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Solution

The fourth proportional to 209,071.32, 288,518.67 and 113,578.08 is: 156,737.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,071.32 : 288,518.67 = 113,578.08 : x
  2. Step 2: Convert to fraction form
    209,071.32/288,518.67 = 113,578.08/x
  3. Step 3: Cross multiply
    209,071.32x = 288,518.67 × 113,578.08
  4. Step 4: Simplify right side
    209,071.32x = 32,769,396,582.75
  5. Step 5: Solve for x
    x = 32,769,396,582.75/209,071.32
  6. Step 6: Final answer
    x = 156,737.89

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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.