Home / 209,073.28-288,511.88-118,427.44

Finding the Fourth Proportional to 209,073.28, 288,511.88 and 118,427.44

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Solution

The fourth proportional to 209,073.28, 288,511.88 and 118,427.44 is: 163,424.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,073.28 : 288,511.88 = 118,427.44 : x
  2. Step 2: Convert to fraction form
    209,073.28/288,511.88 = 118,427.44/x
  3. Step 3: Cross multiply
    209,073.28x = 288,511.88 × 118,427.44
  4. Step 4: Simplify right side
    209,073.28x = 34,167,723,357.99
  5. Step 5: Solve for x
    x = 34,167,723,357.99/209,073.28
  6. Step 6: Final answer
    x = 163,424.63

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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.