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Finding the Fourth Proportional to 360,542.98, 540,775.54 and 120,629.71

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Solution

The fourth proportional to 360,542.98, 540,775.54 and 120,629.71 is: 180,931.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,542.98 : 540,775.54 = 120,629.71 : x
  2. Step 2: Convert to fraction form
    360,542.98/540,775.54 = 120,629.71/x
  3. Step 3: Cross multiply
    360,542.98x = 540,775.54 × 120,629.71
  4. Step 4: Simplify right side
    360,542.98x = 65,233,596,565.29
  5. Step 5: Solve for x
    x = 65,233,596,565.29/360,542.98
  6. Step 6: Final answer
    x = 180,931.54

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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.