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Finding the Fourth Proportional to 288,975.75, 398,802.02 and 161,643.75

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Solution

The fourth proportional to 288,975.75, 398,802.02 and 161,643.75 is: 223,077.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,975.75 : 398,802.02 = 161,643.75 : x
  2. Step 2: Convert to fraction form
    288,975.75/398,802.02 = 161,643.75/x
  3. Step 3: Cross multiply
    288,975.75x = 398,802.02 × 161,643.75
  4. Step 4: Simplify right side
    288,975.75x = 64,463,854,020.38
  5. Step 5: Solve for x
    x = 64,463,854,020.38/288,975.75
  6. Step 6: Final answer
    x = 223,077.04

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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.