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Finding the Fourth Proportional to 358,484.81, 494,705.61 and 197,335.71

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Solution

The fourth proportional to 358,484.81, 494,705.61 and 197,335.71 is: 272,321.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,484.81 : 494,705.61 = 197,335.71 : x
  2. Step 2: Convert to fraction form
    358,484.81/494,705.61 = 197,335.71/x
  3. Step 3: Cross multiply
    358,484.81x = 494,705.61 × 197,335.71
  4. Step 4: Simplify right side
    358,484.81x = 97,623,082,790.33
  5. Step 5: Solve for x
    x = 97,623,082,790.33/358,484.81
  6. Step 6: Final answer
    x = 272,321.40

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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.