Home / 330,835.49-456,657.05-187,690.67

Finding the Fourth Proportional to 330,835.49, 456,657.05 and 187,690.67

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Solution

The fourth proportional to 330,835.49, 456,657.05 and 187,690.67 is: 259,072.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,835.49 : 456,657.05 = 187,690.67 : x
  2. Step 2: Convert to fraction form
    330,835.49/456,657.05 = 187,690.67/x
  3. Step 3: Cross multiply
    330,835.49x = 456,657.05 × 187,690.67
  4. Step 4: Simplify right side
    330,835.49x = 85,710,267,674.72
  5. Step 5: Solve for x
    x = 85,710,267,674.72/330,835.49
  6. Step 6: Final answer
    x = 259,072.17

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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.