Home / 389,048.36-537,329.59-261,502.52

Finding the Fourth Proportional to 389,048.36, 537,329.59 and 261,502.52

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Solution

The fourth proportional to 389,048.36, 537,329.59 and 261,502.52 is: 361,171.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,048.36 : 537,329.59 = 261,502.52 : x
  2. Step 2: Convert to fraction form
    389,048.36/537,329.59 = 261,502.52/x
  3. Step 3: Cross multiply
    389,048.36x = 537,329.59 × 261,502.52
  4. Step 4: Simplify right side
    389,048.36x = 140,513,038,515.16
  5. Step 5: Solve for x
    x = 140,513,038,515.16/389,048.36
  6. Step 6: Final answer
    x = 361,171.14

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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.