Home / 272,273.09-408,461.54-103,779.32

Finding the Fourth Proportional to 272,273.09, 408,461.54 and 103,779.32

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Solution

The fourth proportional to 272,273.09, 408,461.54 and 103,779.32 is: 155,688.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,273.09 : 408,461.54 = 103,779.32 : x
  2. Step 2: Convert to fraction form
    272,273.09/408,461.54 = 103,779.32/x
  3. Step 3: Cross multiply
    272,273.09x = 408,461.54 × 103,779.32
  4. Step 4: Simplify right side
    272,273.09x = 42,389,858,306.15
  5. Step 5: Solve for x
    x = 42,389,858,306.15/272,273.09
  6. Step 6: Final answer
    x = 155,688.76

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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.