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Finding the Fourth Proportional to 384,262.29, 530,279.91 and 223,156.93

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Solution

The fourth proportional to 384,262.29, 530,279.91 and 223,156.93 is: 307,955.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,262.29 : 530,279.91 = 223,156.93 : x
  2. Step 2: Convert to fraction form
    384,262.29/530,279.91 = 223,156.93/x
  3. Step 3: Cross multiply
    384,262.29x = 530,279.91 × 223,156.93
  4. Step 4: Simplify right side
    384,262.29x = 118,335,636,756.28
  5. Step 5: Solve for x
    x = 118,335,636,756.28/384,262.29
  6. Step 6: Final answer
    x = 307,955.37

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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.