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Finding the Fourth Proportional to 383,973.55, 575,894.70 and 103,425.19

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Solution

The fourth proportional to 383,973.55, 575,894.70 and 103,425.19 is: 155,120.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,973.55 : 575,894.70 = 103,425.19 : x
  2. Step 2: Convert to fraction form
    383,973.55/575,894.70 = 103,425.19/x
  3. Step 3: Cross multiply
    383,973.55x = 575,894.70 × 103,425.19
  4. Step 4: Simplify right side
    383,973.55x = 59,562,017,327.76
  5. Step 5: Solve for x
    x = 59,562,017,327.76/383,973.55
  6. Step 6: Final answer
    x = 155,120.11

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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.