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Finding the Fourth Proportional to 379,807.44, 569,991.06 and 180,128.40

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Solution

The fourth proportional to 379,807.44, 569,991.06 and 180,128.40 is: 270,325.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,807.44 : 569,991.06 = 180,128.40 : x
  2. Step 2: Convert to fraction form
    379,807.44/569,991.06 = 180,128.40/x
  3. Step 3: Cross multiply
    379,807.44x = 569,991.06 × 180,128.40
  4. Step 4: Simplify right side
    379,807.44x = 102,671,577,652.10
  5. Step 5: Solve for x
    x = 102,671,577,652.10/379,807.44
  6. Step 6: Final answer
    x = 270,325.35

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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.