Home / 278,515.13-384,349.93-151,189.81

Finding the Fourth Proportional to 278,515.13, 384,349.93 and 151,189.81

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Solution

The fourth proportional to 278,515.13, 384,349.93 and 151,189.81 is: 208,641.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,515.13 : 384,349.93 = 151,189.81 : x
  2. Step 2: Convert to fraction form
    278,515.13/384,349.93 = 151,189.81/x
  3. Step 3: Cross multiply
    278,515.13x = 384,349.93 × 151,189.81
  4. Step 4: Simplify right side
    278,515.13x = 58,109,791,551.36
  5. Step 5: Solve for x
    x = 58,109,791,551.36/278,515.13
  6. Step 6: Final answer
    x = 208,641.42

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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.