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Finding the Fourth Proportional to 328,017.24, 490,228.62 and 239,457.24

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Solution

The fourth proportional to 328,017.24, 490,228.62 and 239,457.24 is: 357,873.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,017.24 : 490,228.62 = 239,457.24 : x
  2. Step 2: Convert to fraction form
    328,017.24/490,228.62 = 239,457.24/x
  3. Step 3: Cross multiply
    328,017.24x = 490,228.62 × 239,457.24
  4. Step 4: Simplify right side
    328,017.24x = 117,388,792,314.21
  5. Step 5: Solve for x
    x = 117,388,792,314.21/328,017.24
  6. Step 6: Final answer
    x = 357,873.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.