Home / 216,971.51-299,433.03-121,477.37

Finding the Fourth Proportional to 216,971.51, 299,433.03 and 121,477.37

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Solution

The fourth proportional to 216,971.51, 299,433.03 and 121,477.37 is: 167,645.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,971.51 : 299,433.03 = 121,477.37 : x
  2. Step 2: Convert to fraction form
    216,971.51/299,433.03 = 121,477.37/x
  3. Step 3: Cross multiply
    216,971.51x = 299,433.03 × 121,477.37
  4. Step 4: Simplify right side
    216,971.51x = 36,374,337,048.79
  5. Step 5: Solve for x
    x = 36,374,337,048.79/216,971.51
  6. Step 6: Final answer
    x = 167,645.68

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1.5x scale

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.