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Finding the Fourth Proportional to 328,463.83, 453,403.34 and 215,293.87

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Solution

The fourth proportional to 328,463.83, 453,403.34 and 215,293.87 is: 297,186.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,463.83 : 453,403.34 = 215,293.87 : x
  2. Step 2: Convert to fraction form
    328,463.83/453,403.34 = 215,293.87/x
  3. Step 3: Cross multiply
    328,463.83x = 453,403.34 × 215,293.87
  4. Step 4: Simplify right side
    328,463.83x = 97,614,959,739.53
  5. Step 5: Solve for x
    x = 97,614,959,739.53/328,463.83
  6. Step 6: Final answer
    x = 297,186.33

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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.