Home / 525,013.56-787,531.50-188,076.12

Finding the Fourth Proportional to 525,013.56, 787,531.50 and 188,076.12

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Solution

The fourth proportional to 525,013.56, 787,531.50 and 188,076.12 is: 282,118.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,013.56 : 787,531.50 = 188,076.12 : x
  2. Step 2: Convert to fraction form
    525,013.56/787,531.50 = 188,076.12/x
  3. Step 3: Cross multiply
    525,013.56x = 787,531.50 × 188,076.12
  4. Step 4: Simplify right side
    525,013.56x = 148,115,868,897.78
  5. Step 5: Solve for x
    x = 148,115,868,897.78/525,013.56
  6. Step 6: Final answer
    x = 282,118.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.