Home / 489,980.30-676,206.22-272,214.50

Finding the Fourth Proportional to 489,980.30, 676,206.22 and 272,214.50

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Solution

The fourth proportional to 489,980.30, 676,206.22 and 272,214.50 is: 375,674.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,980.30 : 676,206.22 = 272,214.50 : x
  2. Step 2: Convert to fraction form
    489,980.30/676,206.22 = 272,214.50/x
  3. Step 3: Cross multiply
    489,980.30x = 676,206.22 × 272,214.50
  4. Step 4: Simplify right side
    489,980.30x = 184,073,138,074.19
  5. Step 5: Solve for x
    x = 184,073,138,074.19/489,980.30
  6. Step 6: Final answer
    x = 375,674.57

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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.