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Finding the Fourth Proportional to 315,465.57, 435,326.13 and 179,496.77

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Solution

The fourth proportional to 315,465.57, 435,326.13 and 179,496.77 is: 247,696.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,465.57 : 435,326.13 = 179,496.77 : x
  2. Step 2: Convert to fraction form
    315,465.57/435,326.13 = 179,496.77/x
  3. Step 3: Cross multiply
    315,465.57x = 435,326.13 × 179,496.77
  4. Step 4: Simplify right side
    315,465.57x = 78,139,632,054.97
  5. Step 5: Solve for x
    x = 78,139,632,054.97/315,465.57
  6. Step 6: Final answer
    x = 247,696.23

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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.