Home / 278,919.63-384,911.63-151,595.53

Finding the Fourth Proportional to 278,919.63, 384,911.63 and 151,595.53

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Solution

The fourth proportional to 278,919.63, 384,911.63 and 151,595.53 is: 209,203.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,919.63 : 384,911.63 = 151,595.53 : x
  2. Step 2: Convert to fraction form
    278,919.63/384,911.63 = 151,595.53/x
  3. Step 3: Cross multiply
    278,919.63x = 384,911.63 × 151,595.53
  4. Step 4: Simplify right side
    278,919.63x = 58,350,881,401.24
  5. Step 5: Solve for x
    x = 58,350,881,401.24/278,919.63
  6. Step 6: Final answer
    x = 209,203.21

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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.