Home / 286,715.23-430,083.78-146,309.83

Finding the Fourth Proportional to 286,715.23, 430,083.78 and 146,309.83

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Solution

The fourth proportional to 286,715.23, 430,083.78 and 146,309.83 is: 219,470.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,715.23 : 430,083.78 = 146,309.83 : x
  2. Step 2: Convert to fraction form
    286,715.23/430,083.78 = 146,309.83/x
  3. Step 3: Cross multiply
    286,715.23x = 430,083.78 × 146,309.83
  4. Step 4: Simplify right side
    286,715.23x = 62,925,483,113.69
  5. Step 5: Solve for x
    x = 62,925,483,113.69/286,715.23
  6. Step 6: Final answer
    x = 219,470.32

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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.