Home / 380,932.19-525,580.07-300,108.87

Finding the Fourth Proportional to 380,932.19, 525,580.07 and 300,108.87

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Solution

The fourth proportional to 380,932.19, 525,580.07 and 300,108.87 is: 414,066.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,932.19 : 525,580.07 = 300,108.87 : x
  2. Step 2: Convert to fraction form
    380,932.19/525,580.07 = 300,108.87/x
  3. Step 3: Cross multiply
    380,932.19x = 525,580.07 × 300,108.87
  4. Step 4: Simplify right side
    380,932.19x = 157,731,242,498.01
  5. Step 5: Solve for x
    x = 157,731,242,498.01/380,932.19
  6. Step 6: Final answer
    x = 414,066.45

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1.5x scale

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.