Home / 640,869.66-961,359.04-167,554.26

Finding the Fourth Proportional to 640,869.66, 961,359.04 and 167,554.26

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Solution

The fourth proportional to 640,869.66, 961,359.04 and 167,554.26 is: 251,345.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,869.66 : 961,359.04 = 167,554.26 : x
  2. Step 2: Convert to fraction form
    640,869.66/961,359.04 = 167,554.26/x
  3. Step 3: Cross multiply
    640,869.66x = 961,359.04 × 167,554.26
  4. Step 4: Simplify right side
    640,869.66x = 161,079,802,541.51
  5. Step 5: Solve for x
    x = 161,079,802,541.51/640,869.66
  6. Step 6: Final answer
    x = 251,345.65

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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.