Home / 278,501.58-384,224.52-157,615.14

Finding the Fourth Proportional to 278,501.58, 384,224.52 and 157,615.14

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Solution

The fourth proportional to 278,501.58, 384,224.52 and 157,615.14 is: 217,447.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,501.58 : 384,224.52 = 157,615.14 : x
  2. Step 2: Convert to fraction form
    278,501.58/384,224.52 = 157,615.14/x
  3. Step 3: Cross multiply
    278,501.58x = 384,224.52 × 157,615.14
  4. Step 4: Simplify right side
    278,501.58x = 60,559,601,511.23
  5. Step 5: Solve for x
    x = 60,559,601,511.23/278,501.58
  6. Step 6: Final answer
    x = 217,447.96

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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.