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Finding the Fourth Proportional to 209,349.32, 288,895.88 and 118,713.56

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Solution

The fourth proportional to 209,349.32, 288,895.88 and 118,713.56 is: 163,821.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,349.32 : 288,895.88 = 118,713.56 : x
  2. Step 2: Convert to fraction form
    209,349.32/288,895.88 = 118,713.56/x
  3. Step 3: Cross multiply
    209,349.32x = 288,895.88 × 118,713.56
  4. Step 4: Simplify right side
    209,349.32x = 34,295,858,384.13
  5. Step 5: Solve for x
    x = 34,295,858,384.13/209,349.32
  6. Step 6: Final answer
    x = 163,821.21

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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.