Home / 351,856.95-485,570.03-198,885.98

Finding the Fourth Proportional to 351,856.95, 485,570.03 and 198,885.98

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Solution

The fourth proportional to 351,856.95, 485,570.03 and 198,885.98 is: 274,466.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,856.95 : 485,570.03 = 198,885.98 : x
  2. Step 2: Convert to fraction form
    351,856.95/485,570.03 = 198,885.98/x
  3. Step 3: Cross multiply
    351,856.95x = 485,570.03 × 198,885.98
  4. Step 4: Simplify right side
    351,856.95x = 96,573,071,494.67
  5. Step 5: Solve for x
    x = 96,573,071,494.67/351,856.95
  6. Step 6: Final answer
    x = 274,466.86

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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.