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Finding the Fourth Proportional to 309,596.58, 427,331.70 and 182,345.58

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Solution

The fourth proportional to 309,596.58, 427,331.70 and 182,345.58 is: 251,688.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,596.58 : 427,331.70 = 182,345.58 : x
  2. Step 2: Convert to fraction form
    309,596.58/427,331.70 = 182,345.58/x
  3. Step 3: Cross multiply
    309,596.58x = 427,331.70 × 182,345.58
  4. Step 4: Simplify right side
    309,596.58x = 77,922,046,688.89
  5. Step 5: Solve for x
    x = 77,922,046,688.89/309,596.58
  6. Step 6: Final answer
    x = 251,688.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.