Home / 347,214.80-479,154.12-196,312.40

Finding the Fourth Proportional to 347,214.80, 479,154.12 and 196,312.40

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Solution

The fourth proportional to 347,214.80, 479,154.12 and 196,312.40 is: 270,909.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,214.80 : 479,154.12 = 196,312.40 : x
  2. Step 2: Convert to fraction form
    347,214.80/479,154.12 = 196,312.40/x
  3. Step 3: Cross multiply
    347,214.80x = 479,154.12 × 196,312.40
  4. Step 4: Simplify right side
    347,214.80x = 94,063,895,267.09
  5. Step 5: Solve for x
    x = 94,063,895,267.09/347,214.80
  6. Step 6: Final answer
    x = 270,909.81

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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.