Home / 380,603.43-525,264.75-210,853.35

Finding the Fourth Proportional to 380,603.43, 525,264.75 and 210,853.35

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Solution

The fourth proportional to 380,603.43, 525,264.75 and 210,853.35 is: 290,995.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,603.43 : 525,264.75 = 210,853.35 : x
  2. Step 2: Convert to fraction form
    380,603.43/525,264.75 = 210,853.35/x
  3. Step 3: Cross multiply
    380,603.43x = 525,264.75 × 210,853.35
  4. Step 4: Simplify right side
    380,603.43x = 110,753,832,174.41
  5. Step 5: Solve for x
    x = 110,753,832,174.41/380,603.43
  6. Step 6: Final answer
    x = 290,995.36

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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.