Home / 278,785.26-384,722.64-151,459.74

Finding the Fourth Proportional to 278,785.26, 384,722.64 and 151,459.74

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Solution

The fourth proportional to 278,785.26, 384,722.64 and 151,459.74 is: 209,013.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,785.26 : 384,722.64 = 151,459.74 : x
  2. Step 2: Convert to fraction form
    278,785.26/384,722.64 = 151,459.74/x
  3. Step 3: Cross multiply
    278,785.26x = 384,722.64 × 151,459.74
  4. Step 4: Simplify right side
    278,785.26x = 58,269,991,026.51
  5. Step 5: Solve for x
    x = 58,269,991,026.51/278,785.26
  6. Step 6: Final answer
    x = 209,013.89

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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.