Home / 283,642.81-391,427.09-154,581.32

Finding the Fourth Proportional to 283,642.81, 391,427.09 and 154,581.32

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Solution

The fourth proportional to 283,642.81, 391,427.09 and 154,581.32 is: 213,322.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,642.81 : 391,427.09 = 154,581.32 : x
  2. Step 2: Convert to fraction form
    283,642.81/391,427.09 = 154,581.32/x
  3. Step 3: Cross multiply
    283,642.81x = 391,427.09 × 154,581.32
  4. Step 4: Simplify right side
    283,642.81x = 60,507,316,255.96
  5. Step 5: Solve for x
    x = 60,507,316,255.96/283,642.81
  6. Step 6: Final answer
    x = 213,322.23

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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.