Home / 282,678.34-390,099.90-153,619.37

Finding the Fourth Proportional to 282,678.34, 390,099.90 and 153,619.37

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Solution

The fourth proportional to 282,678.34, 390,099.90 and 153,619.37 is: 211,996.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,678.34 : 390,099.90 = 153,619.37 : x
  2. Step 2: Convert to fraction form
    282,678.34/390,099.90 = 153,619.37/x
  3. Step 3: Cross multiply
    282,678.34x = 390,099.90 × 153,619.37
  4. Step 4: Simplify right side
    282,678.34x = 59,926,899,388.47
  5. Step 5: Solve for x
    x = 59,926,899,388.47/282,678.34
  6. Step 6: Final answer
    x = 211,996.79

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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.