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Finding the Fourth Proportional to 313,920.80, 433,211.64 and 170,681.40

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Solution

The fourth proportional to 313,920.80, 433,211.64 and 170,681.40 is: 235,540.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,920.80 : 433,211.64 = 170,681.40 : x
  2. Step 2: Convert to fraction form
    313,920.80/433,211.64 = 170,681.40/x
  3. Step 3: Cross multiply
    313,920.80x = 433,211.64 × 170,681.40
  4. Step 4: Simplify right side
    313,920.80x = 73,941,169,211.50
  5. Step 5: Solve for x
    x = 73,941,169,211.50/313,920.80
  6. Step 6: Final answer
    x = 235,540.84

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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.