Home / 248,721.23-343,137.87-153,061.85

Finding the Fourth Proportional to 248,721.23, 343,137.87 and 153,061.85

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Solution

The fourth proportional to 248,721.23, 343,137.87 and 153,061.85 is: 211,165.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,721.23 : 343,137.87 = 153,061.85 : x
  2. Step 2: Convert to fraction form
    248,721.23/343,137.87 = 153,061.85/x
  3. Step 3: Cross multiply
    248,721.23x = 343,137.87 × 153,061.85
  4. Step 4: Simplify right side
    248,721.23x = 52,521,318,045.10
  5. Step 5: Solve for x
    x = 52,521,318,045.10/248,721.23
  6. Step 6: Final answer
    x = 211,165.40

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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.