Home / 401,503.05-554,089.71-220,222.62

Finding the Fourth Proportional to 401,503.05, 554,089.71 and 220,222.62

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Solution

The fourth proportional to 401,503.05, 554,089.71 and 220,222.62 is: 303,915.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,503.05 : 554,089.71 = 220,222.62 : x
  2. Step 2: Convert to fraction form
    401,503.05/554,089.71 = 220,222.62/x
  3. Step 3: Cross multiply
    401,503.05x = 554,089.71 × 220,222.62
  4. Step 4: Simplify right side
    401,503.05x = 122,023,087,651.24
  5. Step 5: Solve for x
    x = 122,023,087,651.24/401,503.05
  6. Step 6: Final answer
    x = 303,915.72

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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.