Home / 278,386.81-384,174.83-151,062.39

Finding the Fourth Proportional to 278,386.81, 384,174.83 and 151,062.39

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Solution

The fourth proportional to 278,386.81, 384,174.83 and 151,062.39 is: 208,466.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,386.81 : 384,174.83 = 151,062.39 : x
  2. Step 2: Convert to fraction form
    278,386.81/384,174.83 = 151,062.39/x
  3. Step 3: Cross multiply
    278,386.81x = 384,174.83 × 151,062.39
  4. Step 4: Simplify right side
    278,386.81x = 58,034,368,375.30
  5. Step 5: Solve for x
    x = 58,034,368,375.30/278,386.81
  6. Step 6: Final answer
    x = 208,466.66

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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.