Home / 282,806.36-390,269.24-155,480.84

Finding the Fourth Proportional to 282,806.36, 390,269.24 and 155,480.84

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Solution

The fourth proportional to 282,806.36, 390,269.24 and 155,480.84 is: 214,561.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,806.36 : 390,269.24 = 155,480.84 : x
  2. Step 2: Convert to fraction form
    282,806.36/390,269.24 = 155,480.84/x
  3. Step 3: Cross multiply
    282,806.36x = 390,269.24 × 155,480.84
  4. Step 4: Simplify right side
    282,806.36x = 60,679,389,261.36
  5. Step 5: Solve for x
    x = 60,679,389,261.36/282,806.36
  6. Step 6: Final answer
    x = 214,561.61

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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.