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Finding the Fourth Proportional to 370,346.80, 555,520.20 and 202,385.20

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Solution

The fourth proportional to 370,346.80, 555,520.20 and 202,385.20 is: 303,577.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,346.80 : 555,520.20 = 202,385.20 : x
  2. Step 2: Convert to fraction form
    370,346.80/555,520.20 = 202,385.20/x
  3. Step 3: Cross multiply
    370,346.80x = 555,520.20 × 202,385.20
  4. Step 4: Simplify right side
    370,346.80x = 112,429,066,781.04
  5. Step 5: Solve for x
    x = 112,429,066,781.04/370,346.80
  6. Step 6: Final answer
    x = 303,577.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.