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Finding the Fourth Proportional to 431,855.04, 595,957.08 and 238,272.72

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Solution

The fourth proportional to 431,855.04, 595,957.08 and 238,272.72 is: 328,814.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,855.04 : 595,957.08 = 238,272.72 : x
  2. Step 2: Convert to fraction form
    431,855.04/595,957.08 = 238,272.72/x
  3. Step 3: Cross multiply
    431,855.04x = 595,957.08 × 238,272.72
  4. Step 4: Simplify right side
    431,855.04x = 142,000,314,454.86
  5. Step 5: Solve for x
    x = 142,000,314,454.86/431,855.04
  6. Step 6: Final answer
    x = 328,814.77

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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.