Home / 281,643.36-388,667.39-152,585.12

Finding the Fourth Proportional to 281,643.36, 388,667.39 and 152,585.12

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Solution

The fourth proportional to 281,643.36, 388,667.39 and 152,585.12 is: 210,567.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,643.36 : 388,667.39 = 152,585.12 : x
  2. Step 2: Convert to fraction form
    281,643.36/388,667.39 = 152,585.12/x
  3. Step 3: Cross multiply
    281,643.36x = 388,667.39 × 152,585.12
  4. Step 4: Simplify right side
    281,643.36x = 59,304,860,343.24
  5. Step 5: Solve for x
    x = 59,304,860,343.24/281,643.36
  6. Step 6: Final answer
    x = 210,567.22

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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.