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Finding the Fourth Proportional to 222,984, 307,756.80 and 127,494.72

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Solution

The fourth proportional to 222,984, 307,756.80 and 127,494.72 is: 175,964.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,984 : 307,756.80 = 127,494.72 : x
  2. Step 2: Convert to fraction form
    222,984/307,756.80 = 127,494.72/x
  3. Step 3: Cross multiply
    222,984x = 307,756.80 × 127,494.72
  4. Step 4: Simplify right side
    222,984x = 39,237,367,044.10
  5. Step 5: Solve for x
    x = 39,237,367,044.10/222,984
  6. Step 6: Final answer
    x = 175,964.94

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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.