Home / 403,166.77-556,407.43-221,915.50

Finding the Fourth Proportional to 403,166.77, 556,407.43 and 221,915.50

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Solution

The fourth proportional to 403,166.77, 556,407.43 and 221,915.50 is: 306,263.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,166.77 : 556,407.43 = 221,915.50 : x
  2. Step 2: Convert to fraction form
    403,166.77/556,407.43 = 221,915.50/x
  3. Step 3: Cross multiply
    403,166.77x = 556,407.43 × 221,915.50
  4. Step 4: Simplify right side
    403,166.77x = 123,475,431,086.36
  5. Step 5: Solve for x
    x = 123,475,431,086.36/403,166.77
  6. Step 6: Final answer
    x = 306,263.91

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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.