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Finding the Fourth Proportional to 289,007.93, 398,824.58 and 158,184.92

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Solution

The fourth proportional to 289,007.93, 398,824.58 and 158,184.92 is: 218,291.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,007.93 : 398,824.58 = 158,184.92 : x
  2. Step 2: Convert to fraction form
    289,007.93/398,824.58 = 158,184.92/x
  3. Step 3: Cross multiply
    289,007.93x = 398,824.58 × 158,184.92
  4. Step 4: Simplify right side
    289,007.93x = 63,088,035,673.86
  5. Step 5: Solve for x
    x = 63,088,035,673.86/289,007.93
  6. Step 6: Final answer
    x = 218,291.71

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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.