Home / 315,085.07-434,812.12-171,836.57

Finding the Fourth Proportional to 315,085.07, 434,812.12 and 171,836.57

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Solution

The fourth proportional to 315,085.07, 434,812.12 and 171,836.57 is: 237,131.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,085.07 : 434,812.12 = 171,836.57 : x
  2. Step 2: Convert to fraction form
    315,085.07/434,812.12 = 171,836.57/x
  3. Step 3: Cross multiply
    315,085.07x = 434,812.12 × 171,836.57
  4. Step 4: Simplify right side
    315,085.07x = 74,716,623,952.67
  5. Step 5: Solve for x
    x = 74,716,623,952.67/315,085.07
  6. Step 6: Final answer
    x = 237,131.59

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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.