Home / 278,913.10-384,903.06-151,588.70

Finding the Fourth Proportional to 278,913.10, 384,903.06 and 151,588.70

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Solution

The fourth proportional to 278,913.10, 384,903.06 and 151,588.70 is: 209,194.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,913.10 : 384,903.06 = 151,588.70 : x
  2. Step 2: Convert to fraction form
    278,913.10/384,903.06 = 151,588.70/x
  3. Step 3: Cross multiply
    278,913.10x = 384,903.06 × 151,588.70
  4. Step 4: Simplify right side
    278,913.10x = 58,346,954,491.42
  5. Step 5: Solve for x
    x = 58,346,954,491.42/278,913.10
  6. Step 6: Final answer
    x = 209,194.03

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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.