Home / 356,020.53-491,320.80-194,875.68

Finding the Fourth Proportional to 356,020.53, 491,320.80 and 194,875.68

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Solution

The fourth proportional to 356,020.53, 491,320.80 and 194,875.68 is: 268,935.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,020.53 : 491,320.80 = 194,875.68 : x
  2. Step 2: Convert to fraction form
    356,020.53/491,320.80 = 194,875.68/x
  3. Step 3: Cross multiply
    356,020.53x = 491,320.80 × 194,875.68
  4. Step 4: Simplify right side
    356,020.53x = 95,746,474,998.14
  5. Step 5: Solve for x
    x = 95,746,474,998.14/356,020.53
  6. Step 6: Final answer
    x = 268,935.26

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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.