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Finding the Fourth Proportional to 222,364.16, 306,859.44 and 121,762.16

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Solution

The fourth proportional to 222,364.16, 306,859.44 and 121,762.16 is: 168,030.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,364.16 : 306,859.44 = 121,762.16 : x
  2. Step 2: Convert to fraction form
    222,364.16/306,859.44 = 121,762.16/x
  3. Step 3: Cross multiply
    222,364.16x = 306,859.44 × 121,762.16
  4. Step 4: Simplify right side
    222,364.16x = 37,363,868,230.79
  5. Step 5: Solve for x
    x = 37,363,868,230.79/222,364.16
  6. Step 6: Final answer
    x = 168,030.08

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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.