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Finding the Fourth Proportional to 209,372.40, 313,953.48 and 96,955.92

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Solution

The fourth proportional to 209,372.40, 313,953.48 and 96,955.92 is: 145,385.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,372.40 : 313,953.48 = 96,955.92 : x
  2. Step 2: Convert to fraction form
    209,372.40/313,953.48 = 96,955.92/x
  3. Step 3: Cross multiply
    209,372.40x = 313,953.48 × 96,955.92
  4. Step 4: Simplify right side
    209,372.40x = 30,439,648,490.60
  5. Step 5: Solve for x
    x = 30,439,648,490.60/209,372.40
  6. Step 6: Final answer
    x = 145,385.20

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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.