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Finding the Fourth Proportional to 384,408.60, 576,612.90 and 251,698.20

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Solution

The fourth proportional to 384,408.60, 576,612.90 and 251,698.20 is: 377,547.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,408.60 : 576,612.90 = 251,698.20 : x
  2. Step 2: Convert to fraction form
    384,408.60/576,612.90 = 251,698.20/x
  3. Step 3: Cross multiply
    384,408.60x = 576,612.90 × 251,698.20
  4. Step 4: Simplify right side
    384,408.60x = 145,132,429,026.78
  5. Step 5: Solve for x
    x = 145,132,429,026.78/384,408.60
  6. Step 6: Final answer
    x = 377,547.30

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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.