Home / 278,460.66-384,276.09-151,136.27

Finding the Fourth Proportional to 278,460.66, 384,276.09 and 151,136.27

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Solution

The fourth proportional to 278,460.66, 384,276.09 and 151,136.27 is: 208,568.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,460.66 : 384,276.09 = 151,136.27 : x
  2. Step 2: Convert to fraction form
    278,460.66/384,276.09 = 151,136.27/x
  3. Step 3: Cross multiply
    278,460.66x = 384,276.09 × 151,136.27
  4. Step 4: Simplify right side
    278,460.66x = 58,078,052,971.40
  5. Step 5: Solve for x
    x = 58,078,052,971.40/278,460.66
  6. Step 6: Final answer
    x = 208,568.25

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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.