Home / 305,312.20-457,968.30-187,214.20

Finding the Fourth Proportional to 305,312.20, 457,968.30 and 187,214.20

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Solution

The fourth proportional to 305,312.20, 457,968.30 and 187,214.20 is: 280,821.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,312.20 : 457,968.30 = 187,214.20 : x
  2. Step 2: Convert to fraction form
    305,312.20/457,968.30 = 187,214.20/x
  3. Step 3: Cross multiply
    305,312.20x = 457,968.30 × 187,214.20
  4. Step 4: Simplify right side
    305,312.20x = 85,738,168,909.86
  5. Step 5: Solve for x
    x = 85,738,168,909.86/305,312.20
  6. Step 6: Final answer
    x = 280,821.30

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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.