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Finding the Fourth Proportional to 210,227.84, 315,312 and 60,480.80

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Solution

The fourth proportional to 210,227.84, 315,312 and 60,480.80 is: 90,712.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,227.84 : 315,312 = 60,480.80 : x
  2. Step 2: Convert to fraction form
    210,227.84/315,312 = 60,480.80/x
  3. Step 3: Cross multiply
    210,227.84x = 315,312 × 60,480.80
  4. Step 4: Simplify right side
    210,227.84x = 19,070,322,009.60
  5. Step 5: Solve for x
    x = 19,070,322,009.60/210,227.84
  6. Step 6: Final answer
    x = 90,712.64

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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.