Home / 289,252.02-399,169.36-160,194.72

Finding the Fourth Proportional to 289,252.02, 399,169.36 and 160,194.72

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Solution

The fourth proportional to 289,252.02, 399,169.36 and 160,194.72 is: 221,069.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,252.02 : 399,169.36 = 160,194.72 : x
  2. Step 2: Convert to fraction form
    289,252.02/399,169.36 = 160,194.72/x
  3. Step 3: Cross multiply
    289,252.02x = 399,169.36 × 160,194.72
  4. Step 4: Simplify right side
    289,252.02x = 63,944,823,857.78
  5. Step 5: Solve for x
    x = 63,944,823,857.78/289,252.02
  6. Step 6: Final answer
    x = 221,069.58

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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.