Home / 280,730.52-420,935.70-166,926.36

Finding the Fourth Proportional to 280,730.52, 420,935.70 and 166,926.36

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Solution

The fourth proportional to 280,730.52, 420,935.70 and 166,926.36 is: 250,294.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,730.52 : 420,935.70 = 166,926.36 : x
  2. Step 2: Convert to fraction form
    280,730.52/420,935.70 = 166,926.36/x
  3. Step 3: Cross multiply
    280,730.52x = 420,935.70 × 166,926.36
  4. Step 4: Simplify right side
    280,730.52x = 70,265,264,195.05
  5. Step 5: Solve for x
    x = 70,265,264,195.05/280,730.52
  6. Step 6: Final answer
    x = 250,294.35

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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.