Home / 278,838.10-384,799.01-151,513.69

Finding the Fourth Proportional to 278,838.10, 384,799.01 and 151,513.69

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Solution

The fourth proportional to 278,838.10, 384,799.01 and 151,513.69 is: 209,090.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,838.10 : 384,799.01 = 151,513.69 : x
  2. Step 2: Convert to fraction form
    278,838.10/384,799.01 = 151,513.69/x
  3. Step 3: Cross multiply
    278,838.10x = 384,799.01 × 151,513.69
  4. Step 4: Simplify right side
    278,838.10x = 58,302,317,913.45
  5. Step 5: Solve for x
    x = 58,302,317,913.45/278,838.10
  6. Step 6: Final answer
    x = 209,090.21

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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.