Home / 209,215.53-288,716.27-118,588.64

Finding the Fourth Proportional to 209,215.53, 288,716.27 and 118,588.64

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Solution

The fourth proportional to 209,215.53, 288,716.27 and 118,588.64 is: 163,651.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,215.53 : 288,716.27 = 118,588.64 : x
  2. Step 2: Convert to fraction form
    209,215.53/288,716.27 = 118,588.64/x
  3. Step 3: Cross multiply
    209,215.53x = 288,716.27 × 118,588.64
  4. Step 4: Simplify right side
    209,215.53x = 34,238,467,768.65
  5. Step 5: Solve for x
    x = 34,238,467,768.65/209,215.53
  6. Step 6: Final answer
    x = 163,651.66

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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.