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Finding the Fourth Proportional to 281,452.51, 388,441.34 and 160,565.95

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Solution

The fourth proportional to 281,452.51, 388,441.34 and 160,565.95 is: 221,602.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,452.51 : 388,441.34 = 160,565.95 : x
  2. Step 2: Convert to fraction form
    281,452.51/388,441.34 = 160,565.95/x
  3. Step 3: Cross multiply
    281,452.51x = 388,441.34 × 160,565.95
  4. Step 4: Simplify right side
    281,452.51x = 62,370,452,776.37
  5. Step 5: Solve for x
    x = 62,370,452,776.37/281,452.51
  6. Step 6: Final answer
    x = 221,602.05

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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.