Home / 255,890.48-352,946.02-221,838.08

Finding the Fourth Proportional to 255,890.48, 352,946.02 and 221,838.08

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Solution

The fourth proportional to 255,890.48, 352,946.02 and 221,838.08 is: 305,978.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,890.48 : 352,946.02 = 221,838.08 : x
  2. Step 2: Convert to fraction form
    255,890.48/352,946.02 = 221,838.08/x
  3. Step 3: Cross multiply
    255,890.48x = 352,946.02 × 221,838.08
  4. Step 4: Simplify right side
    255,890.48x = 78,296,867,420.44
  5. Step 5: Solve for x
    x = 78,296,867,420.44/255,890.48
  6. Step 6: Final answer
    x = 305,978.04

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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.