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Finding the Fourth Proportional to 315,757.77, 473,317.45 and 135,960.45

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Solution

The fourth proportional to 315,757.77, 473,317.45 and 135,960.45 is: 203,803.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,757.77 : 473,317.45 = 135,960.45 : x
  2. Step 2: Convert to fraction form
    315,757.77/473,317.45 = 135,960.45/x
  3. Step 3: Cross multiply
    315,757.77x = 473,317.45 × 135,960.45
  4. Step 4: Simplify right side
    315,757.77x = 64,352,453,494.85
  5. Step 5: Solve for x
    x = 64,352,453,494.85/315,757.77
  6. Step 6: Final answer
    x = 203,803.23

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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.