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Finding the Fourth Proportional to 352,666.45, 487,011.71 and 245,529.37

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Solution

The fourth proportional to 352,666.45, 487,011.71 and 245,529.37 is: 339,061.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,666.45 : 487,011.71 = 245,529.37 : x
  2. Step 2: Convert to fraction form
    352,666.45/487,011.71 = 245,529.37/x
  3. Step 3: Cross multiply
    352,666.45x = 487,011.71 × 245,529.37
  4. Step 4: Simplify right side
    352,666.45x = 119,575,678,338.92
  5. Step 5: Solve for x
    x = 119,575,678,338.92/352,666.45
  6. Step 6: Final answer
    x = 339,061.68

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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.