Home / 281,435.42-388,373.36-160,574.51

Finding the Fourth Proportional to 281,435.42, 388,373.36 and 160,574.51

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Solution

The fourth proportional to 281,435.42, 388,373.36 and 160,574.51 is: 221,588.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,435.42 : 388,373.36 = 160,574.51 : x
  2. Step 2: Convert to fraction form
    281,435.42/388,373.36 = 160,574.51/x
  3. Step 3: Cross multiply
    281,435.42x = 388,373.36 × 160,574.51
  4. Step 4: Simplify right side
    281,435.42x = 62,362,861,979.05
  5. Step 5: Solve for x
    x = 62,362,861,979.05/281,435.42
  6. Step 6: Final answer
    x = 221,588.53

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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.