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Finding the Fourth Proportional to 308,590.36, 462,138.04 and 213,554.24

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Solution

The fourth proportional to 308,590.36, 462,138.04 and 213,554.24 is: 319,814.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,590.36 : 462,138.04 = 213,554.24 : x
  2. Step 2: Convert to fraction form
    308,590.36/462,138.04 = 213,554.24/x
  3. Step 3: Cross multiply
    308,590.36x = 462,138.04 × 213,554.24
  4. Step 4: Simplify right side
    308,590.36x = 98,691,537,907.29
  5. Step 5: Solve for x
    x = 98,691,537,907.29/308,590.36
  6. Step 6: Final answer
    x = 319,814.07

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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.