Home / 289,123.22-398,937.57-166,596.50

Finding the Fourth Proportional to 289,123.22, 398,937.57 and 166,596.50

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Solution

The fourth proportional to 289,123.22, 398,937.57 and 166,596.50 is: 229,872.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,123.22 : 398,937.57 = 166,596.50 : x
  2. Step 2: Convert to fraction form
    289,123.22/398,937.57 = 166,596.50/x
  3. Step 3: Cross multiply
    289,123.22x = 398,937.57 × 166,596.50
  4. Step 4: Simplify right side
    289,123.22x = 66,461,602,880.51
  5. Step 5: Solve for x
    x = 66,461,602,880.51/289,123.22
  6. Step 6: Final answer
    x = 229,872.93

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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.