Home / 354,521.02-489,245.66-193,381.82

Finding the Fourth Proportional to 354,521.02, 489,245.66 and 193,381.82

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Solution

The fourth proportional to 354,521.02, 489,245.66 and 193,381.82 is: 266,870.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,521.02 : 489,245.66 = 193,381.82 : x
  2. Step 2: Convert to fraction form
    354,521.02/489,245.66 = 193,381.82/x
  3. Step 3: Cross multiply
    354,521.02x = 489,245.66 × 193,381.82
  4. Step 4: Simplify right side
    354,521.02x = 94,611,216,157.90
  5. Step 5: Solve for x
    x = 94,611,216,157.90/354,521.02
  6. Step 6: Final answer
    x = 266,870.54

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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.