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Finding the Fourth Proportional to 315,496.80, 473,245.20 and 310,312.80

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Solution

The fourth proportional to 315,496.80, 473,245.20 and 310,312.80 is: 465,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,496.80 : 473,245.20 = 310,312.80 : x
  2. Step 2: Convert to fraction form
    315,496.80/473,245.20 = 310,312.80/x
  3. Step 3: Cross multiply
    315,496.80x = 473,245.20 × 310,312.80
  4. Step 4: Simplify right side
    315,496.80x = 146,854,043,098.56
  5. Step 5: Solve for x
    x = 146,854,043,098.56/315,496.80
  6. Step 6: Final answer
    x = 465,469.20

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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.