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Finding the Fourth Proportional to 315,190.04, 434,902.76 and 187,877.48

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Solution

The fourth proportional to 315,190.04, 434,902.76 and 187,877.48 is: 259,235.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,190.04 : 434,902.76 = 187,877.48 : x
  2. Step 2: Convert to fraction form
    315,190.04/434,902.76 = 187,877.48/x
  3. Step 3: Cross multiply
    315,190.04x = 434,902.76 × 187,877.48
  4. Step 4: Simplify right side
    315,190.04x = 81,708,434,593.84
  5. Step 5: Solve for x
    x = 81,708,434,593.84/315,190.04
  6. Step 6: Final answer
    x = 259,235.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.