Home / 380,881.12-525,607.44-211,113.76

Finding the Fourth Proportional to 380,881.12, 525,607.44 and 211,113.76

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Solution

The fourth proportional to 380,881.12, 525,607.44 and 211,113.76 is: 291,332.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,881.12 : 525,607.44 = 211,113.76 : x
  2. Step 2: Convert to fraction form
    380,881.12/525,607.44 = 211,113.76/x
  3. Step 3: Cross multiply
    380,881.12x = 525,607.44 × 211,113.76
  4. Step 4: Simplify right side
    380,881.12x = 110,962,962,942.37
  5. Step 5: Solve for x
    x = 110,962,962,942.37/380,881.12
  6. Step 6: Final answer
    x = 291,332.27

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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.