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Finding the Fourth Proportional to 298,459.89, 411,889.86 and 169,407.45

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Solution

The fourth proportional to 298,459.89, 411,889.86 and 169,407.45 is: 233,790.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,459.89 : 411,889.86 = 169,407.45 : x
  2. Step 2: Convert to fraction form
    298,459.89/411,889.86 = 169,407.45/x
  3. Step 3: Cross multiply
    298,459.89x = 411,889.86 × 169,407.45
  4. Step 4: Simplify right side
    298,459.89x = 69,777,210,863.46
  5. Step 5: Solve for x
    x = 69,777,210,863.46/298,459.89
  6. Step 6: Final answer
    x = 233,790.92

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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.