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Finding the Fourth Proportional to 248,856.80, 374,206.80 and 208,306.40

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Solution

The fourth proportional to 248,856.80, 374,206.80 and 208,306.40 is: 313,231.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,856.80 : 374,206.80 = 208,306.40 : x
  2. Step 2: Convert to fraction form
    248,856.80/374,206.80 = 208,306.40/x
  3. Step 3: Cross multiply
    248,856.80x = 374,206.80 × 208,306.40
  4. Step 4: Simplify right side
    248,856.80x = 77,949,671,363.52
  5. Step 5: Solve for x
    x = 77,949,671,363.52/248,856.80
  6. Step 6: Final answer
    x = 313,231.03

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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.