Home / 380,802.12-525,531.42-211,047.18

Finding the Fourth Proportional to 380,802.12, 525,531.42 and 211,047.18

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Solution

The fourth proportional to 380,802.12, 525,531.42 and 211,047.18 is: 291,258.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,802.12 : 525,531.42 = 211,047.18 : x
  2. Step 2: Convert to fraction form
    380,802.12/525,531.42 = 211,047.18/x
  3. Step 3: Cross multiply
    380,802.12x = 525,531.42 × 211,047.18
  4. Step 4: Simplify right side
    380,802.12x = 110,911,924,192.40
  5. Step 5: Solve for x
    x = 110,911,924,192.40/380,802.12
  6. Step 6: Final answer
    x = 291,258.68

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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.