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Finding the Fourth Proportional to 404,731.28, 607,126.32 and 155,413.28

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Solution

The fourth proportional to 404,731.28, 607,126.32 and 155,413.28 is: 233,131.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,731.28 : 607,126.32 = 155,413.28 : x
  2. Step 2: Convert to fraction form
    404,731.28/607,126.32 = 155,413.28/x
  3. Step 3: Cross multiply
    404,731.28x = 607,126.32 × 155,413.28
  4. Step 4: Simplify right side
    404,731.28x = 94,355,492,765.53
  5. Step 5: Solve for x
    x = 94,355,492,765.53/404,731.28
  6. Step 6: Final answer
    x = 233,131.21

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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.