Home / 282,836.66-390,316.06-155,520.46

Finding the Fourth Proportional to 282,836.66, 390,316.06 and 155,520.46

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Solution

The fourth proportional to 282,836.66, 390,316.06 and 155,520.46 is: 214,619.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,836.66 : 390,316.06 = 155,520.46 : x
  2. Step 2: Convert to fraction form
    282,836.66/390,316.06 = 155,520.46/x
  3. Step 3: Cross multiply
    282,836.66x = 390,316.06 × 155,520.46
  4. Step 4: Simplify right side
    282,836.66x = 60,702,133,196.59
  5. Step 5: Solve for x
    x = 60,702,133,196.59/282,836.66
  6. Step 6: Final answer
    x = 214,619.04

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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.