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Finding the Fourth Proportional to 525,661.80, 788,768.10 and 241,438.20

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Solution

The fourth proportional to 525,661.80, 788,768.10 and 241,438.20 is: 362,283.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,661.80 : 788,768.10 = 241,438.20 : x
  2. Step 2: Convert to fraction form
    525,661.80/788,768.10 = 241,438.20/x
  3. Step 3: Cross multiply
    525,661.80x = 788,768.10 × 241,438.20
  4. Step 4: Simplify right side
    525,661.80x = 190,438,750,281.42
  5. Step 5: Solve for x
    x = 190,438,750,281.42/525,661.80
  6. Step 6: Final answer
    x = 362,283.79

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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.