Home / 380,970.23-525,762.50-211,204.35

Finding the Fourth Proportional to 380,970.23, 525,762.50 and 211,204.35

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Solution

The fourth proportional to 380,970.23, 525,762.50 and 211,204.35 is: 291,475.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,970.23 : 525,762.50 = 211,204.35 : x
  2. Step 2: Convert to fraction form
    380,970.23/525,762.50 = 211,204.35/x
  3. Step 3: Cross multiply
    380,970.23x = 525,762.50 × 211,204.35
  4. Step 4: Simplify right side
    380,970.23x = 111,043,326,010.85
  5. Step 5: Solve for x
    x = 111,043,326,010.85/380,970.23
  6. Step 6: Final answer
    x = 291,475.08

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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.