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Finding the Fourth Proportional to 248,123.65, 342,400.75 and 134,946.49

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Solution

The fourth proportional to 248,123.65, 342,400.75 and 134,946.49 is: 186,220.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,123.65 : 342,400.75 = 134,946.49 : x
  2. Step 2: Convert to fraction form
    248,123.65/342,400.75 = 134,946.49/x
  3. Step 3: Cross multiply
    248,123.65x = 342,400.75 × 134,946.49
  4. Step 4: Simplify right side
    248,123.65x = 46,205,779,385.87
  5. Step 5: Solve for x
    x = 46,205,779,385.87/248,123.65
  6. Step 6: Final answer
    x = 186,220.78

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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.