Home / 278,908.10-384,896.16-151,583.70

Finding the Fourth Proportional to 278,908.10, 384,896.16 and 151,583.70

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Solution

The fourth proportional to 278,908.10, 384,896.16 and 151,583.70 is: 209,187.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,908.10 : 384,896.16 = 151,583.70 : x
  2. Step 2: Convert to fraction form
    278,908.10/384,896.16 = 151,583.70/x
  3. Step 3: Cross multiply
    278,908.10x = 384,896.16 × 151,583.70
  4. Step 4: Simplify right side
    278,908.10x = 58,343,984,048.59
  5. Step 5: Solve for x
    x = 58,343,984,048.59/278,908.10
  6. Step 6: Final answer
    x = 209,187.13

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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.