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Finding the Fourth Proportional to 360,293.61, 540,256.80 and 120,321.16

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Solution

The fourth proportional to 360,293.61, 540,256.80 and 120,321.16 is: 180,420.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,293.61 : 540,256.80 = 120,321.16 : x
  2. Step 2: Convert to fraction form
    360,293.61/540,256.80 = 120,321.16/x
  3. Step 3: Cross multiply
    360,293.61x = 540,256.80 × 120,321.16
  4. Step 4: Simplify right side
    360,293.61x = 65,004,323,974.45
  5. Step 5: Solve for x
    x = 65,004,323,974.45/360,293.61
  6. Step 6: Final answer
    x = 180,420.42

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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.