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Finding the Fourth Proportional to 364,802.28, 547,258.26 and 128,103.30

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Solution

The fourth proportional to 364,802.28, 547,258.26 and 128,103.30 is: 192,174.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,802.28 : 547,258.26 = 128,103.30 : x
  2. Step 2: Convert to fraction form
    364,802.28/547,258.26 = 128,103.30/x
  3. Step 3: Cross multiply
    364,802.28x = 547,258.26 × 128,103.30
  4. Step 4: Simplify right side
    364,802.28x = 70,105,589,058.26
  5. Step 5: Solve for x
    x = 70,105,589,058.26/364,802.28
  6. Step 6: Final answer
    x = 192,174.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.