Home / 281,328.02-388,203.78-160,460.18

Finding the Fourth Proportional to 281,328.02, 388,203.78 and 160,460.18

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Solution

The fourth proportional to 281,328.02, 388,203.78 and 160,460.18 is: 221,418.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,328.02 : 388,203.78 = 160,460.18 : x
  2. Step 2: Convert to fraction form
    281,328.02/388,203.78 = 160,460.18/x
  3. Step 3: Cross multiply
    281,328.02x = 388,203.78 × 160,460.18
  4. Step 4: Simplify right side
    281,328.02x = 62,291,248,415.48
  5. Step 5: Solve for x
    x = 62,291,248,415.48/281,328.02
  6. Step 6: Final answer
    x = 221,418.57

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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.