Home / 282,770.16-390,224.09-155,453.95

Finding the Fourth Proportional to 282,770.16, 390,224.09 and 155,453.95

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Solution

The fourth proportional to 282,770.16, 390,224.09 and 155,453.95 is: 214,527.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,770.16 : 390,224.09 = 155,453.95 : x
  2. Step 2: Convert to fraction form
    282,770.16/390,224.09 = 155,453.95/x
  3. Step 3: Cross multiply
    282,770.16x = 390,224.09 × 155,453.95
  4. Step 4: Simplify right side
    282,770.16x = 60,661,875,398.39
  5. Step 5: Solve for x
    x = 60,661,875,398.39/282,770.16
  6. Step 6: Final answer
    x = 214,527.15

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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.