Home / 222,911.58-307,618-127,420.36

Finding the Fourth Proportional to 222,911.58, 307,618 and 127,420.36

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Solution

The fourth proportional to 222,911.58, 307,618 and 127,420.36 is: 175,840.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,911.58 : 307,618 = 127,420.36 : x
  2. Step 2: Convert to fraction form
    222,911.58/307,618 = 127,420.36/x
  3. Step 3: Cross multiply
    222,911.58x = 307,618 × 127,420.36
  4. Step 4: Simplify right side
    222,911.58x = 39,196,796,302.48
  5. Step 5: Solve for x
    x = 39,196,796,302.48/222,911.58
  6. Step 6: Final answer
    x = 175,840.11

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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.