Home / 259,006.12-388,564.76-146,740.12

Finding the Fourth Proportional to 259,006.12, 388,564.76 and 146,740.12

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Solution

The fourth proportional to 259,006.12, 388,564.76 and 146,740.12 is: 220,141.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,006.12 : 388,564.76 = 146,740.12 : x
  2. Step 2: Convert to fraction form
    259,006.12/388,564.76 = 146,740.12/x
  3. Step 3: Cross multiply
    259,006.12x = 388,564.76 × 146,740.12
  4. Step 4: Simplify right side
    259,006.12x = 57,018,038,905.61
  5. Step 5: Solve for x
    x = 57,018,038,905.61/259,006.12
  6. Step 6: Final answer
    x = 220,141.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.