Home / 380,899.80-571,421.92-153,212.84

Finding the Fourth Proportional to 380,899.80, 571,421.92 and 153,212.84

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Solution

The fourth proportional to 380,899.80, 571,421.92 and 153,212.84 is: 229,848.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,899.80 : 571,421.92 = 153,212.84 : x
  2. Step 2: Convert to fraction form
    380,899.80/571,421.92 = 153,212.84/x
  3. Step 3: Cross multiply
    380,899.80x = 571,421.92 × 153,212.84
  4. Step 4: Simplify right side
    380,899.80x = 87,549,175,201.45
  5. Step 5: Solve for x
    x = 87,549,175,201.45/380,899.80
  6. Step 6: Final answer
    x = 229,848.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.