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Finding the Fourth Proportional to 360,431.58, 540,590.58 and 120,543.66

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Solution

The fourth proportional to 360,431.58, 540,590.58 and 120,543.66 is: 180,796.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,431.58 : 540,590.58 = 120,543.66 : x
  2. Step 2: Convert to fraction form
    360,431.58/540,590.58 = 120,543.66/x
  3. Step 3: Cross multiply
    360,431.58x = 540,590.58 × 120,543.66
  4. Step 4: Simplify right side
    360,431.58x = 65,164,767,074.72
  5. Step 5: Solve for x
    x = 65,164,767,074.72/360,431.58
  6. Step 6: Final answer
    x = 180,796.50

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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.