Home / 315,721.40-473,586.14-105,359.33

Finding the Fourth Proportional to 315,721.40, 473,586.14 and 105,359.33

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Solution

The fourth proportional to 315,721.40, 473,586.14 and 105,359.33 is: 158,040.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,721.40 : 473,586.14 = 105,359.33 : x
  2. Step 2: Convert to fraction form
    315,721.40/473,586.14 = 105,359.33/x
  3. Step 3: Cross multiply
    315,721.40x = 473,586.14 × 105,359.33
  4. Step 4: Simplify right side
    315,721.40x = 49,896,719,855.05
  5. Step 5: Solve for x
    x = 49,896,719,855.05/315,721.40
  6. Step 6: Final answer
    x = 158,040.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.