Home / 315,292.30-435,112.62-172,061.58

Finding the Fourth Proportional to 315,292.30, 435,112.62 and 172,061.58

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Solution

The fourth proportional to 315,292.30, 435,112.62 and 172,061.58 is: 237,450.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,292.30 : 435,112.62 = 172,061.58 : x
  2. Step 2: Convert to fraction form
    315,292.30/435,112.62 = 172,061.58/x
  3. Step 3: Cross multiply
    315,292.30x = 435,112.62 × 172,061.58
  4. Step 4: Simplify right side
    315,292.30x = 74,866,164,875.14
  5. Step 5: Solve for x
    x = 74,866,164,875.14/315,292.30
  6. Step 6: Final answer
    x = 237,450.03

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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.