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Finding the Fourth Proportional to 309,196.80, 463,605.66 and 131,602.68

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Solution

The fourth proportional to 309,196.80, 463,605.66 and 131,602.68 is: 197,323.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,196.80 : 463,605.66 = 131,602.68 : x
  2. Step 2: Convert to fraction form
    309,196.80/463,605.66 = 131,602.68/x
  3. Step 3: Cross multiply
    309,196.80x = 463,605.66 × 131,602.68
  4. Step 4: Simplify right side
    309,196.80x = 61,011,747,319.17
  5. Step 5: Solve for x
    x = 61,011,747,319.17/309,196.80
  6. Step 6: Final answer
    x = 197,323.35

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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.