Home / 316,413.03-436,660.14-173,172.90

Finding the Fourth Proportional to 316,413.03, 436,660.14 and 173,172.90

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Solution

The fourth proportional to 316,413.03, 436,660.14 and 173,172.90 is: 238,984.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,413.03 : 436,660.14 = 173,172.90 : x
  2. Step 2: Convert to fraction form
    316,413.03/436,660.14 = 173,172.90/x
  3. Step 3: Cross multiply
    316,413.03x = 436,660.14 × 173,172.90
  4. Step 4: Simplify right side
    316,413.03x = 75,617,700,574.91
  5. Step 5: Solve for x
    x = 75,617,700,574.91/316,413.03
  6. Step 6: Final answer
    x = 238,984.16

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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.