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Finding the Fourth Proportional to 360,012.60, 540,018.90 and 353,791.80

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Solution

The fourth proportional to 360,012.60, 540,018.90 and 353,791.80 is: 530,687.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,012.60 : 540,018.90 = 353,791.80 : x
  2. Step 2: Convert to fraction form
    360,012.60/540,018.90 = 353,791.80/x
  3. Step 3: Cross multiply
    360,012.60x = 540,018.90 × 353,791.80
  4. Step 4: Simplify right side
    360,012.60x = 191,054,258,665.02
  5. Step 5: Solve for x
    x = 191,054,258,665.02/360,012.60
  6. Step 6: Final answer
    x = 530,687.70

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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.