Home / 256,943.48-385,413.08-200,830.75

Finding the Fourth Proportional to 256,943.48, 385,413.08 and 200,830.75

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Solution

The fourth proportional to 256,943.48, 385,413.08 and 200,830.75 is: 301,244.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,943.48 : 385,413.08 = 200,830.75 : x
  2. Step 2: Convert to fraction form
    256,943.48/385,413.08 = 200,830.75/x
  3. Step 3: Cross multiply
    256,943.48x = 385,413.08 × 200,830.75
  4. Step 4: Simplify right side
    256,943.48x = 77,402,795,948.52
  5. Step 5: Solve for x
    x = 77,402,795,948.52/256,943.48
  6. Step 6: Final answer
    x = 301,244.45

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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.