Home / 345,881.23-515,383.28-308,151.38

Finding the Fourth Proportional to 345,881.23, 515,383.28 and 308,151.38

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Solution

The fourth proportional to 345,881.23, 515,383.28 and 308,151.38 is: 459,163.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,881.23 : 515,383.28 = 308,151.38 : x
  2. Step 2: Convert to fraction form
    345,881.23/515,383.28 = 308,151.38/x
  3. Step 3: Cross multiply
    345,881.23x = 515,383.28 × 308,151.38
  4. Step 4: Simplify right side
    345,881.23x = 158,816,069,864.20
  5. Step 5: Solve for x
    x = 158,816,069,864.20/345,881.23
  6. Step 6: Final answer
    x = 459,163.60

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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.