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Finding the Fourth Proportional to 328,475.28, 453,368.44 and 213,553.92

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Solution

The fourth proportional to 328,475.28, 453,368.44 and 213,553.92 is: 294,751.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,475.28 : 453,368.44 = 213,553.92 : x
  2. Step 2: Convert to fraction form
    328,475.28/453,368.44 = 213,553.92/x
  3. Step 3: Cross multiply
    328,475.28x = 453,368.44 × 213,553.92
  4. Step 4: Simplify right side
    328,475.28x = 96,818,607,566.28
  5. Step 5: Solve for x
    x = 96,818,607,566.28/328,475.28
  6. Step 6: Final answer
    x = 294,751.58

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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.