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Finding the Fourth Proportional to 356,445.69, 535,504.70 and 336,270.21

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Solution

The fourth proportional to 356,445.69, 535,504.70 and 336,270.21 is: 505,194.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,445.69 : 535,504.70 = 336,270.21 : x
  2. Step 2: Convert to fraction form
    356,445.69/535,504.70 = 336,270.21/x
  3. Step 3: Cross multiply
    356,445.69x = 535,504.70 × 336,270.21
  4. Step 4: Simplify right side
    356,445.69x = 180,074,276,243.64
  5. Step 5: Solve for x
    x = 180,074,276,243.64/356,445.69
  6. Step 6: Final answer
    x = 505,194.15

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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.