Home / 328,935.45-493,403.31-123,808.62

Finding the Fourth Proportional to 328,935.45, 493,403.31 and 123,808.62

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Solution

The fourth proportional to 328,935.45, 493,403.31 and 123,808.62 is: 185,712.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,935.45 : 493,403.31 = 123,808.62 : x
  2. Step 2: Convert to fraction form
    328,935.45/493,403.31 = 123,808.62/x
  3. Step 3: Cross multiply
    328,935.45x = 493,403.31 × 123,808.62
  4. Step 4: Simplify right side
    328,935.45x = 61,087,582,914.53
  5. Step 5: Solve for x
    x = 61,087,582,914.53/328,935.45
  6. Step 6: Final answer
    x = 185,712.98

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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.