Home / 209,342.69-288,884.11-118,704.75

Finding the Fourth Proportional to 209,342.69, 288,884.11 and 118,704.75

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Solution

The fourth proportional to 209,342.69, 288,884.11 and 118,704.75 is: 163,807.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,342.69 : 288,884.11 = 118,704.75 : x
  2. Step 2: Convert to fraction form
    209,342.69/288,884.11 = 118,704.75/x
  3. Step 3: Cross multiply
    209,342.69x = 288,884.11 × 118,704.75
  4. Step 4: Simplify right side
    209,342.69x = 34,291,916,056.52
  5. Step 5: Solve for x
    x = 34,291,916,056.52/209,342.69
  6. Step 6: Final answer
    x = 163,807.56

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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.