Home / 211,401.03-291,746.93-139,655.28

Finding the Fourth Proportional to 211,401.03, 291,746.93 and 139,655.28

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Solution

The fourth proportional to 211,401.03, 291,746.93 and 139,655.28 is: 192,733.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,401.03 : 291,746.93 = 139,655.28 : x
  2. Step 2: Convert to fraction form
    211,401.03/291,746.93 = 139,655.28/x
  3. Step 3: Cross multiply
    211,401.03x = 291,746.93 × 139,655.28
  4. Step 4: Simplify right side
    211,401.03x = 40,743,999,198.29
  5. Step 5: Solve for x
    x = 40,743,999,198.29/211,401.03
  6. Step 6: Final answer
    x = 192,733.21

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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.