Home / 289,640.06-399,702.66-176,462.90

Finding the Fourth Proportional to 289,640.06, 399,702.66 and 176,462.90

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Solution

The fourth proportional to 289,640.06, 399,702.66 and 176,462.90 is: 243,518.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,640.06 : 399,702.66 = 176,462.90 : x
  2. Step 2: Convert to fraction form
    289,640.06/399,702.66 = 176,462.90/x
  3. Step 3: Cross multiply
    289,640.06x = 399,702.66 × 176,462.90
  4. Step 4: Simplify right side
    289,640.06x = 70,532,690,521.31
  5. Step 5: Solve for x
    x = 70,532,690,521.31/289,640.06
  6. Step 6: Final answer
    x = 243,518.42

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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.