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Finding the Fourth Proportional to 209,975.07, 289,772.89 and 119,334.86

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Solution

The fourth proportional to 209,975.07, 289,772.89 and 119,334.86 is: 164,686.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,975.07 : 289,772.89 = 119,334.86 : x
  2. Step 2: Convert to fraction form
    209,975.07/289,772.89 = 119,334.86/x
  3. Step 3: Cross multiply
    209,975.07x = 289,772.89 × 119,334.86
  4. Step 4: Simplify right side
    209,975.07x = 34,580,005,214.41
  5. Step 5: Solve for x
    x = 34,580,005,214.41/209,975.07
  6. Step 6: Final answer
    x = 164,686.24

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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.