Home / 209,081.30-288,522.91-118,435.44

Finding the Fourth Proportional to 209,081.30, 288,522.91 and 118,435.44

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Solution

The fourth proportional to 209,081.30, 288,522.91 and 118,435.44 is: 163,435.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,081.30 : 288,522.91 = 118,435.44 : x
  2. Step 2: Convert to fraction form
    209,081.30/288,522.91 = 118,435.44/x
  3. Step 3: Cross multiply
    209,081.30x = 288,522.91 × 118,435.44
  4. Step 4: Simplify right side
    209,081.30x = 34,171,338,214.46
  5. Step 5: Solve for x
    x = 34,171,338,214.46/209,081.30
  6. Step 6: Final answer
    x = 163,435.65

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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.