Home / 486,145.77-670,881.18-268,354.50

Finding the Fourth Proportional to 486,145.77, 670,881.18 and 268,354.50

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Solution

The fourth proportional to 486,145.77, 670,881.18 and 268,354.50 is: 370,329.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,145.77 : 670,881.18 = 268,354.50 : x
  2. Step 2: Convert to fraction form
    486,145.77/670,881.18 = 268,354.50/x
  3. Step 3: Cross multiply
    486,145.77x = 670,881.18 × 268,354.50
  4. Step 4: Simplify right side
    486,145.77x = 180,033,983,618.31
  5. Step 5: Solve for x
    x = 180,033,983,618.31/486,145.77
  6. Step 6: Final answer
    x = 370,329.22

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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.