Home / 278,409.42-384,202.75-151,085.01

Finding the Fourth Proportional to 278,409.42, 384,202.75 and 151,085.01

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Solution

The fourth proportional to 278,409.42, 384,202.75 and 151,085.01 is: 208,496.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,409.42 : 384,202.75 = 151,085.01 : x
  2. Step 2: Convert to fraction form
    278,409.42/384,202.75 = 151,085.01/x
  3. Step 3: Cross multiply
    278,409.42x = 384,202.75 × 151,085.01
  4. Step 4: Simplify right side
    278,409.42x = 58,047,276,325.78
  5. Step 5: Solve for x
    x = 58,047,276,325.78/278,409.42
  6. Step 6: Final answer
    x = 208,496.09

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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.