Home / 283,018.53-390,568.81-162,157.39

Finding the Fourth Proportional to 283,018.53, 390,568.81 and 162,157.39

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Solution

The fourth proportional to 283,018.53, 390,568.81 and 162,157.39 is: 223,779.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,018.53 : 390,568.81 = 162,157.39 : x
  2. Step 2: Convert to fraction form
    283,018.53/390,568.81 = 162,157.39/x
  3. Step 3: Cross multiply
    283,018.53x = 390,568.81 × 162,157.39
  4. Step 4: Simplify right side
    283,018.53x = 63,333,620,420.25
  5. Step 5: Solve for x
    x = 63,333,620,420.25/283,018.53
  6. Step 6: Final answer
    x = 223,779.06

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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.