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Finding the Fourth Proportional to 288,007.04, 431,994.36 and 88,326.88

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Solution

The fourth proportional to 288,007.04, 431,994.36 and 88,326.88 is: 132,485.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,007.04 : 431,994.36 = 88,326.88 : x
  2. Step 2: Convert to fraction form
    288,007.04/431,994.36 = 88,326.88/x
  3. Step 3: Cross multiply
    288,007.04x = 431,994.36 × 88,326.88
  4. Step 4: Simplify right side
    288,007.04x = 38,156,713,996.40
  5. Step 5: Solve for x
    x = 38,156,713,996.40/288,007.04
  6. Step 6: Final answer
    x = 132,485.35

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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.