Home / 282,852.21-390,334.78-155,527.50

Finding the Fourth Proportional to 282,852.21, 390,334.78 and 155,527.50

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Solution

The fourth proportional to 282,852.21, 390,334.78 and 155,527.50 is: 214,627.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,852.21 : 390,334.78 = 155,527.50 : x
  2. Step 2: Convert to fraction form
    282,852.21/390,334.78 = 155,527.50/x
  3. Step 3: Cross multiply
    282,852.21x = 390,334.78 × 155,527.50
  4. Step 4: Simplify right side
    282,852.21x = 60,707,792,496.45
  5. Step 5: Solve for x
    x = 60,707,792,496.45/282,852.21
  6. Step 6: Final answer
    x = 214,627.25

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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.