Home / 209,118.35-288,584.03-118,491.10

Finding the Fourth Proportional to 209,118.35, 288,584.03 and 118,491.10

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Solution

The fourth proportional to 209,118.35, 288,584.03 and 118,491.10 is: 163,518.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,118.35 : 288,584.03 = 118,491.10 : x
  2. Step 2: Convert to fraction form
    209,118.35/288,584.03 = 118,491.10/x
  3. Step 3: Cross multiply
    209,118.35x = 288,584.03 × 118,491.10
  4. Step 4: Simplify right side
    209,118.35x = 34,194,638,731.90
  5. Step 5: Solve for x
    x = 34,194,638,731.90/209,118.35
  6. Step 6: Final answer
    x = 163,518.11

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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.