Home / 282,619.41-390,015.59-155,301.45

Finding the Fourth Proportional to 282,619.41, 390,015.59 and 155,301.45

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Solution

The fourth proportional to 282,619.41, 390,015.59 and 155,301.45 is: 214,316.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,619.41 : 390,015.59 = 155,301.45 : x
  2. Step 2: Convert to fraction form
    282,619.41/390,015.59 = 155,301.45/x
  3. Step 3: Cross multiply
    282,619.41x = 390,015.59 × 155,301.45
  4. Step 4: Simplify right side
    282,619.41x = 60,569,985,873.10
  5. Step 5: Solve for x
    x = 60,569,985,873.10/282,619.41
  6. Step 6: Final answer
    x = 214,316.44

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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.