Home / 389,048.49-537,329.79-261,502.65

Finding the Fourth Proportional to 389,048.49, 537,329.79 and 261,502.65

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Solution

The fourth proportional to 389,048.49, 537,329.79 and 261,502.65 is: 361,171.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,048.49 : 537,329.79 = 261,502.65 : x
  2. Step 2: Convert to fraction form
    389,048.49/537,329.79 = 261,502.65/x
  3. Step 3: Cross multiply
    389,048.49x = 537,329.79 × 261,502.65
  4. Step 4: Simplify right side
    389,048.49x = 140,513,164,698.51
  5. Step 5: Solve for x
    x = 140,513,164,698.51/389,048.49
  6. Step 6: Final answer
    x = 361,171.34

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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.