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Finding the Fourth Proportional to 296,846.60, 445,226.70 and 86,462.60

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Solution

The fourth proportional to 296,846.60, 445,226.70 and 86,462.60 is: 129,681.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,846.60 : 445,226.70 = 86,462.60 : x
  2. Step 2: Convert to fraction form
    296,846.60/445,226.70 = 86,462.60/x
  3. Step 3: Cross multiply
    296,846.60x = 445,226.70 × 86,462.60
  4. Step 4: Simplify right side
    296,846.60x = 38,495,458,071.42
  5. Step 5: Solve for x
    x = 38,495,458,071.42/296,846.60
  6. Step 6: Final answer
    x = 129,681.32

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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.