Home / 221,005.71-304,973.91-130,365.36

Finding the Fourth Proportional to 221,005.71, 304,973.91 and 130,365.36

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Solution

The fourth proportional to 221,005.71, 304,973.91 and 130,365.36 is: 179,895.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,005.71 : 304,973.91 = 130,365.36 : x
  2. Step 2: Convert to fraction form
    221,005.71/304,973.91 = 130,365.36/x
  3. Step 3: Cross multiply
    221,005.71x = 304,973.91 × 130,365.36
  4. Step 4: Simplify right side
    221,005.71x = 39,758,033,567.76
  5. Step 5: Solve for x
    x = 39,758,033,567.76/221,005.71
  6. Step 6: Final answer
    x = 179,895.96

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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.