Home / 278,284.44-384,032.64-157,423.16

Finding the Fourth Proportional to 278,284.44, 384,032.64 and 157,423.16

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Solution

The fourth proportional to 278,284.44, 384,032.64 and 157,423.16 is: 217,244.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,284.44 : 384,032.64 = 157,423.16 : x
  2. Step 2: Convert to fraction form
    278,284.44/384,032.64 = 157,423.16/x
  3. Step 3: Cross multiply
    278,284.44x = 384,032.64 × 157,423.16
  4. Step 4: Simplify right side
    278,284.44x = 60,455,631,731.94
  5. Step 5: Solve for x
    x = 60,455,631,731.94/278,284.44
  6. Step 6: Final answer
    x = 217,244.02

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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.