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Finding the Fourth Proportional to 288,065.61, 397,530.58 and 159,004.13

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Solution

The fourth proportional to 288,065.61, 397,530.58 and 159,004.13 is: 219,425.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,065.61 : 397,530.58 = 159,004.13 : x
  2. Step 2: Convert to fraction form
    288,065.61/397,530.58 = 159,004.13/x
  3. Step 3: Cross multiply
    288,065.61x = 397,530.58 × 159,004.13
  4. Step 4: Simplify right side
    288,065.61x = 63,209,001,238.62
  5. Step 5: Solve for x
    x = 63,209,001,238.62/288,065.61
  6. Step 6: Final answer
    x = 219,425.71

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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.