Home / 289,161.64-399,043.02-161,837.23

Finding the Fourth Proportional to 289,161.64, 399,043.02 and 161,837.23

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Solution

The fourth proportional to 289,161.64, 399,043.02 and 161,837.23 is: 223,335.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,161.64 : 399,043.02 = 161,837.23 : x
  2. Step 2: Convert to fraction form
    289,161.64/399,043.02 = 161,837.23/x
  3. Step 3: Cross multiply
    289,161.64x = 399,043.02 × 161,837.23
  4. Step 4: Simplify right side
    289,161.64x = 64,580,017,007.63
  5. Step 5: Solve for x
    x = 64,580,017,007.63/289,161.64
  6. Step 6: Final answer
    x = 223,335.35

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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.