Home / 222,815.49-307,479.61-127,322.20

Finding the Fourth Proportional to 222,815.49, 307,479.61 and 127,322.20

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Solution

The fourth proportional to 222,815.49, 307,479.61 and 127,322.20 is: 175,701.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,815.49 : 307,479.61 = 127,322.20 : x
  2. Step 2: Convert to fraction form
    222,815.49/307,479.61 = 127,322.20/x
  3. Step 3: Cross multiply
    222,815.49x = 307,479.61 × 127,322.20
  4. Step 4: Simplify right side
    222,815.49x = 39,148,980,400.34
  5. Step 5: Solve for x
    x = 39,148,980,400.34/222,815.49
  6. Step 6: Final answer
    x = 175,701.34

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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.