Home / 289,521.18-399,561.37-167,035.50

Finding the Fourth Proportional to 289,521.18, 399,561.37 and 167,035.50

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Solution

The fourth proportional to 289,521.18, 399,561.37 and 167,035.50 is: 230,521.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,521.18 : 399,561.37 = 167,035.50 : x
  2. Step 2: Convert to fraction form
    289,521.18/399,561.37 = 167,035.50/x
  3. Step 3: Cross multiply
    289,521.18x = 399,561.37 × 167,035.50
  4. Step 4: Simplify right side
    289,521.18x = 66,740,932,801.05
  5. Step 5: Solve for x
    x = 66,740,932,801.05/289,521.18
  6. Step 6: Final answer
    x = 230,521.76

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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.