Home / 278,594.26-417,962.08-128,942.32

Finding the Fourth Proportional to 278,594.26, 417,962.08 and 128,942.32

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Solution

The fourth proportional to 278,594.26, 417,962.08 and 128,942.32 is: 193,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,594.26 : 417,962.08 = 128,942.32 : x
  2. Step 2: Convert to fraction form
    278,594.26/417,962.08 = 128,942.32/x
  3. Step 3: Cross multiply
    278,594.26x = 417,962.08 × 128,942.32
  4. Step 4: Simplify right side
    278,594.26x = 53,893,000,267.23
  5. Step 5: Solve for x
    x = 53,893,000,267.23/278,594.26
  6. Step 6: Final answer
    x = 193,446.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.