Home / 281,342.31-388,273.95-160,486.26

Finding the Fourth Proportional to 281,342.31, 388,273.95 and 160,486.26

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Solution

The fourth proportional to 281,342.31, 388,273.95 and 160,486.26 is: 221,483.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,342.31 : 388,273.95 = 160,486.26 : x
  2. Step 2: Convert to fraction form
    281,342.31/388,273.95 = 160,486.26/x
  3. Step 3: Cross multiply
    281,342.31x = 388,273.95 × 160,486.26
  4. Step 4: Simplify right side
    281,342.31x = 62,312,634,090.93
  5. Step 5: Solve for x
    x = 62,312,634,090.93/281,342.31
  6. Step 6: Final answer
    x = 221,483.34

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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.