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Finding the Fourth Proportional to 288,369.62, 432,615.18 and 108,456.20

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Solution

The fourth proportional to 288,369.62, 432,615.18 and 108,456.20 is: 162,707.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,369.62 : 432,615.18 = 108,456.20 : x
  2. Step 2: Convert to fraction form
    288,369.62/432,615.18 = 108,456.20/x
  3. Step 3: Cross multiply
    288,369.62x = 432,615.18 × 108,456.20
  4. Step 4: Simplify right side
    288,369.62x = 46,919,798,485.12
  5. Step 5: Solve for x
    x = 46,919,798,485.12/288,369.62
  6. Step 6: Final answer
    x = 162,707.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.