Home / 289,521.12-399,534.48-162,195.84

Finding the Fourth Proportional to 289,521.12, 399,534.48 and 162,195.84

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Solution

The fourth proportional to 289,521.12, 399,534.48 and 162,195.84 is: 223,827.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,521.12 : 399,534.48 = 162,195.84 : x
  2. Step 2: Convert to fraction form
    289,521.12/399,534.48 = 162,195.84/x
  3. Step 3: Cross multiply
    289,521.12x = 399,534.48 × 162,195.84
  4. Step 4: Simplify right side
    289,521.12x = 64,802,830,592.56
  5. Step 5: Solve for x
    x = 64,802,830,592.56/289,521.12
  6. Step 6: Final answer
    x = 223,827.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.