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Finding the Fourth Proportional to 278,653.84, 384,527.96 and 151,329.13

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Solution

The fourth proportional to 278,653.84, 384,527.96 and 151,329.13 is: 208,826.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,653.84 : 384,527.96 = 151,329.13 : x
  2. Step 2: Convert to fraction form
    278,653.84/384,527.96 = 151,329.13/x
  3. Step 3: Cross multiply
    278,653.84x = 384,527.96 × 151,329.13
  4. Step 4: Simplify right side
    278,653.84x = 58,190,280,496.99
  5. Step 5: Solve for x
    x = 58,190,280,496.99/278,653.84
  6. Step 6: Final answer
    x = 208,826.41

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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.