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Finding the Fourth Proportional to 328,970.52, 454,384.15 and 238,182.68

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Solution

The fourth proportional to 328,970.52, 454,384.15 and 238,182.68 is: 328,985.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,970.52 : 454,384.15 = 238,182.68 : x
  2. Step 2: Convert to fraction form
    328,970.52/454,384.15 = 238,182.68/x
  3. Step 3: Cross multiply
    328,970.52x = 454,384.15 × 238,182.68
  4. Step 4: Simplify right side
    328,970.52x = 108,226,435,137.03
  5. Step 5: Solve for x
    x = 108,226,435,137.03/328,970.52
  6. Step 6: Final answer
    x = 328,985.21

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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.