Home / 280,919.61-421,437.74-93,926.25

Finding the Fourth Proportional to 280,919.61, 421,437.74 and 93,926.25

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Solution

The fourth proportional to 280,919.61, 421,437.74 and 93,926.25 is: 140,908.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,919.61 : 421,437.74 = 93,926.25 : x
  2. Step 2: Convert to fraction form
    280,919.61/421,437.74 = 93,926.25/x
  3. Step 3: Cross multiply
    280,919.61x = 421,437.74 × 93,926.25
  4. Step 4: Simplify right side
    280,919.61x = 39,584,066,057.04
  5. Step 5: Solve for x
    x = 39,584,066,057.04/280,919.61
  6. Step 6: Final answer
    x = 140,908.87

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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.