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Finding the Fourth Proportional to 315,570.66, 435,528.66 and 179,578.14

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Solution

The fourth proportional to 315,570.66, 435,528.66 and 179,578.14 is: 247,841.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,570.66 : 435,528.66 = 179,578.14 : x
  2. Step 2: Convert to fraction form
    315,570.66/435,528.66 = 179,578.14/x
  3. Step 3: Cross multiply
    315,570.66x = 435,528.66 × 179,578.14
  4. Step 4: Simplify right side
    315,570.66x = 78,211,426,679.49
  5. Step 5: Solve for x
    x = 78,211,426,679.49/315,570.66
  6. Step 6: Final answer
    x = 247,841.25

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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.