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Finding the Fourth Proportional to 288,045.70, 397,463.34 and 160,696.60

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Solution

The fourth proportional to 288,045.70, 397,463.34 and 160,696.60 is: 221,739.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,045.70 : 397,463.34 = 160,696.60 : x
  2. Step 2: Convert to fraction form
    288,045.70/397,463.34 = 160,696.60/x
  3. Step 3: Cross multiply
    288,045.70x = 397,463.34 × 160,696.60
  4. Step 4: Simplify right side
    288,045.70x = 63,871,007,362.64
  5. Step 5: Solve for x
    x = 63,871,007,362.64/288,045.70
  6. Step 6: Final answer
    x = 221,739.15

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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.