Home / 355,947.83-491,208.19-194,802.78

Finding the Fourth Proportional to 355,947.83, 491,208.19 and 194,802.78

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Solution

The fourth proportional to 355,947.83, 491,208.19 and 194,802.78 is: 268,827.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,947.83 : 491,208.19 = 194,802.78 : x
  2. Step 2: Convert to fraction form
    355,947.83/491,208.19 = 194,802.78/x
  3. Step 3: Cross multiply
    355,947.83x = 491,208.19 × 194,802.78
  4. Step 4: Simplify right side
    355,947.83x = 95,688,720,970.77
  5. Step 5: Solve for x
    x = 95,688,720,970.77/355,947.83
  6. Step 6: Final answer
    x = 268,827.94

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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.