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Finding the Fourth Proportional to 309,233.60, 463,504.80 and 131,710.40

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Solution

The fourth proportional to 309,233.60, 463,504.80 and 131,710.40 is: 197,418.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,233.60 : 463,504.80 = 131,710.40 : x
  2. Step 2: Convert to fraction form
    309,233.60/463,504.80 = 131,710.40/x
  3. Step 3: Cross multiply
    309,233.60x = 463,504.80 × 131,710.40
  4. Step 4: Simplify right side
    309,233.60x = 61,048,402,609.92
  5. Step 5: Solve for x
    x = 61,048,402,609.92/309,233.60
  6. Step 6: Final answer
    x = 197,418.40

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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.