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Finding the Fourth Proportional to 309,097.60, 463,300.80 and 131,574.40

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Solution

The fourth proportional to 309,097.60, 463,300.80 and 131,574.40 is: 197,214.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,097.60 : 463,300.80 = 131,574.40 : x
  2. Step 2: Convert to fraction form
    309,097.60/463,300.80 = 131,574.40/x
  3. Step 3: Cross multiply
    309,097.60x = 463,300.80 × 131,574.40
  4. Step 4: Simplify right side
    309,097.60x = 60,958,524,779.52
  5. Step 5: Solve for x
    x = 60,958,524,779.52/309,097.60
  6. Step 6: Final answer
    x = 197,214.49

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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.