Home / 278,475.84-384,297.08-151,151.54

Finding the Fourth Proportional to 278,475.84, 384,297.08 and 151,151.54

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Solution

The fourth proportional to 278,475.84, 384,297.08 and 151,151.54 is: 208,589.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,475.84 : 384,297.08 = 151,151.54 : x
  2. Step 2: Convert to fraction form
    278,475.84/384,297.08 = 151,151.54/x
  3. Step 3: Cross multiply
    278,475.84x = 384,297.08 × 151,151.54
  4. Step 4: Simplify right side
    278,475.84x = 58,087,092,782.26
  5. Step 5: Solve for x
    x = 58,087,092,782.26/278,475.84
  6. Step 6: Final answer
    x = 208,589.34

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1.5x scale

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.