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Finding the Fourth Proportional to 401,807.32, 554,492.49 and 220,522.23

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Solution

The fourth proportional to 401,807.32, 554,492.49 and 220,522.23 is: 304,319.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,807.32 : 554,492.49 = 220,522.23 : x
  2. Step 2: Convert to fraction form
    401,807.32/554,492.49 = 220,522.23/x
  3. Step 3: Cross multiply
    401,807.32x = 554,492.49 × 220,522.23
  4. Step 4: Simplify right side
    401,807.32x = 122,277,919,586.09
  5. Step 5: Solve for x
    x = 122,277,919,586.09/401,807.32
  6. Step 6: Final answer
    x = 304,319.79

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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.