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Finding the Fourth Proportional to 306,359.66, 422,603.77 and 183,820.35

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Solution

The fourth proportional to 306,359.66, 422,603.77 and 183,820.35 is: 253,568.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,359.66 : 422,603.77 = 183,820.35 : x
  2. Step 2: Convert to fraction form
    306,359.66/422,603.77 = 183,820.35/x
  3. Step 3: Cross multiply
    306,359.66x = 422,603.77 × 183,820.35
  4. Step 4: Simplify right side
    306,359.66x = 77,683,169,880.60
  5. Step 5: Solve for x
    x = 77,683,169,880.60/306,359.66
  6. Step 6: Final answer
    x = 253,568.53

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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.