Home / 447,128.51-617,031.27-243,175.03

Finding the Fourth Proportional to 447,128.51, 617,031.27 and 243,175.03

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Solution

The fourth proportional to 447,128.51, 617,031.27 and 243,175.03 is: 335,578.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,128.51 : 617,031.27 = 243,175.03 : x
  2. Step 2: Convert to fraction form
    447,128.51/617,031.27 = 243,175.03/x
  3. Step 3: Cross multiply
    447,128.51x = 617,031.27 × 243,175.03
  4. Step 4: Simplify right side
    447,128.51x = 150,046,596,050.61
  5. Step 5: Solve for x
    x = 150,046,596,050.61/447,128.51
  6. Step 6: Final answer
    x = 335,578.24

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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.