Home / 345,880.10-515,381.60-308,150.26

Finding the Fourth Proportional to 345,880.10, 515,381.60 and 308,150.26

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Solution

The fourth proportional to 345,880.10, 515,381.60 and 308,150.26 is: 459,161.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,880.10 : 515,381.60 = 308,150.26 : x
  2. Step 2: Convert to fraction form
    345,880.10/515,381.60 = 308,150.26/x
  3. Step 3: Cross multiply
    345,880.10x = 515,381.60 × 308,150.26
  4. Step 4: Simplify right side
    345,880.10x = 158,814,973,521.14
  5. Step 5: Solve for x
    x = 158,814,973,521.14/345,880.10
  6. Step 6: Final answer
    x = 459,161.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.