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Finding the Fourth Proportional to 328,405.16, 491,648.16 and 296,888.06

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Solution

The fourth proportional to 328,405.16, 491,648.16 and 296,888.06 is: 444,464.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,405.16 : 491,648.16 = 296,888.06 : x
  2. Step 2: Convert to fraction form
    328,405.16/491,648.16 = 296,888.06/x
  3. Step 3: Cross multiply
    328,405.16x = 491,648.16 × 296,888.06
  4. Step 4: Simplify right side
    328,405.16x = 145,964,468,424.97
  5. Step 5: Solve for x
    x = 145,964,468,424.97/328,405.16
  6. Step 6: Final answer
    x = 444,464.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.