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Finding the Fourth Proportional to 308,303, 462,454.52 and 86,687

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Solution

The fourth proportional to 308,303, 462,454.52 and 86,687 is: 130,030.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,303 : 462,454.52 = 86,687 : x
  2. Step 2: Convert to fraction form
    308,303/462,454.52 = 86,687/x
  3. Step 3: Cross multiply
    308,303x = 462,454.52 × 86,687
  4. Step 4: Simplify right side
    308,303x = 40,088,794,975.24
  5. Step 5: Solve for x
    x = 40,088,794,975.24/308,303
  6. Step 6: Final answer
    x = 130,030.51

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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.