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Finding the Fourth Proportional to 492,215.45, 679,257.77 and 265,860.95

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Solution

The fourth proportional to 492,215.45, 679,257.77 and 265,860.95 is: 366,888.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,215.45 : 679,257.77 = 265,860.95 : x
  2. Step 2: Convert to fraction form
    492,215.45/679,257.77 = 265,860.95/x
  3. Step 3: Cross multiply
    492,215.45x = 679,257.77 × 265,860.95
  4. Step 4: Simplify right side
    492,215.45x = 180,588,111,301.49
  5. Step 5: Solve for x
    x = 180,588,111,301.49/492,215.45
  6. Step 6: Final answer
    x = 366,888.35

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1.5x scale

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.