Home / 309,151.61-426,621.79-173,191.29

Finding the Fourth Proportional to 309,151.61, 426,621.79 and 173,191.29

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Solution

The fourth proportional to 309,151.61, 426,621.79 and 173,191.29 is: 238,999.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,151.61 : 426,621.79 = 173,191.29 : x
  2. Step 2: Convert to fraction form
    309,151.61/426,621.79 = 173,191.29/x
  3. Step 3: Cross multiply
    309,151.61x = 426,621.79 × 173,191.29
  4. Step 4: Simplify right side
    309,151.61x = 73,887,178,152.21
  5. Step 5: Solve for x
    x = 73,887,178,152.21/309,151.61
  6. Step 6: Final answer
    x = 238,999.82

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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.