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Finding the Fourth Proportional to 384,159.66, 530,111.24 and 222,988.70

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Solution

The fourth proportional to 384,159.66, 530,111.24 and 222,988.70 is: 307,707.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,159.66 : 530,111.24 = 222,988.70 : x
  2. Step 2: Convert to fraction form
    384,159.66/530,111.24 = 222,988.70/x
  3. Step 3: Cross multiply
    384,159.66x = 530,111.24 × 222,988.70
  4. Step 4: Simplify right side
    384,159.66x = 118,208,816,262.99
  5. Step 5: Solve for x
    x = 118,208,816,262.99/384,159.66
  6. Step 6: Final answer
    x = 307,707.52

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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.