Home / 423,827.10-635,345.37-143,148.06

Finding the Fourth Proportional to 423,827.10, 635,345.37 and 143,148.06

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Solution

The fourth proportional to 423,827.10, 635,345.37 and 143,148.06 is: 214,588.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,827.10 : 635,345.37 = 143,148.06 : x
  2. Step 2: Convert to fraction form
    423,827.10/635,345.37 = 143,148.06/x
  3. Step 3: Cross multiply
    423,827.10x = 635,345.37 × 143,148.06
  4. Step 4: Simplify right side
    423,827.10x = 90,948,457,145.48
  5. Step 5: Solve for x
    x = 90,948,457,145.48/423,827.10
  6. Step 6: Final answer
    x = 214,588.58

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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.