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Finding the Fourth Proportional to 315,504.56, 473,257.63 and 125,980.36

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Solution

The fourth proportional to 315,504.56, 473,257.63 and 125,980.36 is: 188,970.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,504.56 : 473,257.63 = 125,980.36 : x
  2. Step 2: Convert to fraction form
    315,504.56/473,257.63 = 125,980.36/x
  3. Step 3: Cross multiply
    315,504.56x = 473,257.63 × 125,980.36
  4. Step 4: Simplify right side
    315,504.56x = 59,621,164,233.86
  5. Step 5: Solve for x
    x = 59,621,164,233.86/315,504.56
  6. Step 6: Final answer
    x = 188,970.85

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1.5x scale

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.