Home / 369,918.18-510,487.38-256,806.54

Finding the Fourth Proportional to 369,918.18, 510,487.38 and 256,806.54

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Solution

The fourth proportional to 369,918.18, 510,487.38 and 256,806.54 is: 354,393.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,918.18 : 510,487.38 = 256,806.54 : x
  2. Step 2: Convert to fraction form
    369,918.18/510,487.38 = 256,806.54/x
  3. Step 3: Cross multiply
    369,918.18x = 510,487.38 × 256,806.54
  4. Step 4: Simplify right side
    369,918.18x = 131,096,497,771.47
  5. Step 5: Solve for x
    x = 131,096,497,771.47/369,918.18
  6. Step 6: Final answer
    x = 354,393.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.