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Finding the Fourth Proportional to 248,302.34, 342,633.52 and 139,381.74

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Solution

The fourth proportional to 248,302.34, 342,633.52 and 139,381.74 is: 192,333.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,302.34 : 342,633.52 = 139,381.74 : x
  2. Step 2: Convert to fraction form
    248,302.34/342,633.52 = 139,381.74/x
  3. Step 3: Cross multiply
    248,302.34x = 342,633.52 × 139,381.74
  4. Step 4: Simplify right side
    248,302.34x = 47,756,856,374.15
  5. Step 5: Solve for x
    x = 47,756,856,374.15/248,302.34
  6. Step 6: Final answer
    x = 192,333.49

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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.