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Finding the Fourth Proportional to 358,471.53, 494,686.89 and 197,323.20

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Solution

The fourth proportional to 358,471.53, 494,686.89 and 197,323.20 is: 272,303.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,471.53 : 494,686.89 = 197,323.20 : x
  2. Step 2: Convert to fraction form
    358,471.53/494,686.89 = 197,323.20/x
  3. Step 3: Cross multiply
    358,471.53x = 494,686.89 × 197,323.20
  4. Step 4: Simplify right side
    358,471.53x = 97,613,200,132.85
  5. Step 5: Solve for x
    x = 97,613,200,132.85/358,471.53
  6. Step 6: Final answer
    x = 272,303.91

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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.