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Finding the Fourth Proportional to 399,911.49, 600,018.74 and 240,099.02

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Solution

The fourth proportional to 399,911.49, 600,018.74 and 240,099.02 is: 360,239.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,911.49 : 600,018.74 = 240,099.02 : x
  2. Step 2: Convert to fraction form
    399,911.49/600,018.74 = 240,099.02/x
  3. Step 3: Cross multiply
    399,911.49x = 600,018.74 × 240,099.02
  4. Step 4: Simplify right side
    399,911.49x = 144,063,910,255.14
  5. Step 5: Solve for x
    x = 144,063,910,255.14/399,911.49
  6. Step 6: Final answer
    x = 360,239.49

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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.