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Finding the Fourth Proportional to 288,009.33, 432,108.78 and 136,271.62

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Solution

The fourth proportional to 288,009.33, 432,108.78 and 136,271.62 is: 204,452.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,009.33 : 432,108.78 = 136,271.62 : x
  2. Step 2: Convert to fraction form
    288,009.33/432,108.78 = 136,271.62/x
  3. Step 3: Cross multiply
    288,009.33x = 432,108.78 × 136,271.62
  4. Step 4: Simplify right side
    288,009.33x = 58,884,163,466.82
  5. Step 5: Solve for x
    x = 58,884,163,466.82/288,009.33
  6. Step 6: Final answer
    x = 204,452.28

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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.