Home / 380,613.26-525,239.07-210,848.78

Finding the Fourth Proportional to 380,613.26, 525,239.07 and 210,848.78

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Solution

The fourth proportional to 380,613.26, 525,239.07 and 210,848.78 is: 290,967.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,613.26 : 525,239.07 = 210,848.78 : x
  2. Step 2: Convert to fraction form
    380,613.26/525,239.07 = 210,848.78/x
  3. Step 3: Cross multiply
    380,613.26x = 525,239.07 × 210,848.78
  4. Step 4: Simplify right side
    380,613.26x = 110,746,017,117.84
  5. Step 5: Solve for x
    x = 110,746,017,117.84/380,613.26
  6. Step 6: Final answer
    x = 290,967.31

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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.