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Finding the Fourth Proportional to 351,875.68, 528,654.78 and 225,763.63

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Solution

The fourth proportional to 351,875.68, 528,654.78 and 225,763.63 is: 339,185.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,875.68 : 528,654.78 = 225,763.63 : x
  2. Step 2: Convert to fraction form
    351,875.68/528,654.78 = 225,763.63/x
  3. Step 3: Cross multiply
    351,875.68x = 528,654.78 × 225,763.63
  4. Step 4: Simplify right side
    351,875.68x = 119,351,020,828.01
  5. Step 5: Solve for x
    x = 119,351,020,828.01/351,875.68
  6. Step 6: Final answer
    x = 339,185.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.