Home / 311,938.47-430,476.38-168,698.51

Finding the Fourth Proportional to 311,938.47, 430,476.38 and 168,698.51

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Solution

The fourth proportional to 311,938.47, 430,476.38 and 168,698.51 is: 232,804.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,938.47 : 430,476.38 = 168,698.51 : x
  2. Step 2: Convert to fraction form
    311,938.47/430,476.38 = 168,698.51/x
  3. Step 3: Cross multiply
    311,938.47x = 430,476.38 × 168,698.51
  4. Step 4: Simplify right side
    311,938.47x = 72,620,723,896.19
  5. Step 5: Solve for x
    x = 72,620,723,896.19/311,938.47
  6. Step 6: Final answer
    x = 232,804.64

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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.