Home / 283,643.36-391,427.90-154,581.86

Finding the Fourth Proportional to 283,643.36, 391,427.90 and 154,581.86

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Solution

The fourth proportional to 283,643.36, 391,427.90 and 154,581.86 is: 213,323.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,643.36 : 391,427.90 = 154,581.86 : x
  2. Step 2: Convert to fraction form
    283,643.36/391,427.90 = 154,581.86/x
  3. Step 3: Cross multiply
    283,643.36x = 391,427.90 × 154,581.86
  4. Step 4: Simplify right side
    283,643.36x = 60,507,652,837.89
  5. Step 5: Solve for x
    x = 60,507,652,837.89/283,643.36
  6. Step 6: Final answer
    x = 213,323.00

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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.