Home / 278,409.52-384,205.38-151,085.10

Finding the Fourth Proportional to 278,409.52, 384,205.38 and 151,085.10

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Solution

The fourth proportional to 278,409.52, 384,205.38 and 151,085.10 is: 208,497.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,409.52 : 384,205.38 = 151,085.10 : x
  2. Step 2: Convert to fraction form
    278,409.52/384,205.38 = 151,085.10/x
  3. Step 3: Cross multiply
    278,409.52x = 384,205.38 × 151,085.10
  4. Step 4: Simplify right side
    278,409.52x = 58,047,708,257.84
  5. Step 5: Solve for x
    x = 58,047,708,257.84/278,409.52
  6. Step 6: Final answer
    x = 208,497.57

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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.