Home / 288,304.20-432,456.30-188,771.40

Finding the Fourth Proportional to 288,304.20, 432,456.30 and 188,771.40

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Solution

The fourth proportional to 288,304.20, 432,456.30 and 188,771.40 is: 283,157.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,304.20 : 432,456.30 = 188,771.40 : x
  2. Step 2: Convert to fraction form
    288,304.20/432,456.30 = 188,771.40/x
  3. Step 3: Cross multiply
    288,304.20x = 432,456.30 × 188,771.40
  4. Step 4: Simplify right side
    288,304.20x = 81,635,381,189.82
  5. Step 5: Solve for x
    x = 81,635,381,189.82/288,304.20
  6. Step 6: Final answer
    x = 283,157.10

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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.