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Finding the Fourth Proportional to 222,130.64, 306,547.31 and 121,528.64

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Solution

The fourth proportional to 222,130.64, 306,547.31 and 121,528.64 is: 167,713.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,130.64 : 306,547.31 = 121,528.64 : x
  2. Step 2: Convert to fraction form
    222,130.64/306,547.31 = 121,528.64/x
  3. Step 3: Cross multiply
    222,130.64x = 306,547.31 × 121,528.64
  4. Step 4: Simplify right side
    222,130.64x = 37,254,277,679.96
  5. Step 5: Solve for x
    x = 37,254,277,679.96/222,130.64
  6. Step 6: Final answer
    x = 167,713.37

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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.