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Finding the Fourth Proportional to 209,562.55, 289,188.27 and 118,913.11

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Solution

The fourth proportional to 209,562.55, 289,188.27 and 118,913.11 is: 164,095.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,562.55 : 289,188.27 = 118,913.11 : x
  2. Step 2: Convert to fraction form
    209,562.55/289,188.27 = 118,913.11/x
  3. Step 3: Cross multiply
    209,562.55x = 289,188.27 × 118,913.11
  4. Step 4: Simplify right side
    209,562.55x = 34,388,275,838.25
  5. Step 5: Solve for x
    x = 34,388,275,838.25/209,562.55
  6. Step 6: Final answer
    x = 164,095.52

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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.