Home / 420,941.04-581,089.84-268,188.72

Finding the Fourth Proportional to 420,941.04, 581,089.84 and 268,188.72

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Solution

The fourth proportional to 420,941.04, 581,089.84 and 268,188.72 is: 370,222.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,941.04 : 581,089.84 = 268,188.72 : x
  2. Step 2: Convert to fraction form
    420,941.04/581,089.84 = 268,188.72/x
  3. Step 3: Cross multiply
    420,941.04x = 581,089.84 × 268,188.72
  4. Step 4: Simplify right side
    420,941.04x = 155,841,740,394.61
  5. Step 5: Solve for x
    x = 155,841,740,394.61/420,941.04
  6. Step 6: Final answer
    x = 370,222.25

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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.