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Finding the Fourth Proportional to 315,459.96, 435,372.94 and 179,526.97

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Solution

The fourth proportional to 315,459.96, 435,372.94 and 179,526.97 is: 247,768.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,459.96 : 435,372.94 = 179,526.97 : x
  2. Step 2: Convert to fraction form
    315,459.96/435,372.94 = 179,526.97/x
  3. Step 3: Cross multiply
    315,459.96x = 435,372.94 × 179,526.97
  4. Step 4: Simplify right side
    315,459.96x = 78,161,184,738.19
  5. Step 5: Solve for x
    x = 78,161,184,738.19/315,459.96
  6. Step 6: Final answer
    x = 247,768.96

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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.