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Finding the Fourth Proportional to 288,653.58, 432,674.20 and 111,083.76

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Solution

The fourth proportional to 288,653.58, 432,674.20 and 111,083.76 is: 166,507.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,653.58 : 432,674.20 = 111,083.76 : x
  2. Step 2: Convert to fraction form
    288,653.58/432,674.20 = 111,083.76/x
  3. Step 3: Cross multiply
    288,653.58x = 432,674.20 × 111,083.76
  4. Step 4: Simplify right side
    288,653.58x = 48,063,076,990.99
  5. Step 5: Solve for x
    x = 48,063,076,990.99/288,653.58
  6. Step 6: Final answer
    x = 166,507.82

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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.