Home / 222,921.59-307,631.79-127,430.42

Finding the Fourth Proportional to 222,921.59, 307,631.79 and 127,430.42

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Solution

The fourth proportional to 222,921.59, 307,631.79 and 127,430.42 is: 175,853.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,921.59 : 307,631.79 = 127,430.42 : x
  2. Step 2: Convert to fraction form
    222,921.59/307,631.79 = 127,430.42/x
  3. Step 3: Cross multiply
    222,921.59x = 307,631.79 × 127,430.42
  4. Step 4: Simplify right side
    222,921.59x = 39,201,646,666.89
  5. Step 5: Solve for x
    x = 39,201,646,666.89/222,921.59
  6. Step 6: Final answer
    x = 175,853.97

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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.