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Finding the Fourth Proportional to 340,400.10, 510,600.15 and 191,100.90

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Solution

The fourth proportional to 340,400.10, 510,600.15 and 191,100.90 is: 286,651.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,400.10 : 510,600.15 = 191,100.90 : x
  2. Step 2: Convert to fraction form
    340,400.10/510,600.15 = 191,100.90/x
  3. Step 3: Cross multiply
    340,400.10x = 510,600.15 × 191,100.90
  4. Step 4: Simplify right side
    340,400.10x = 97,576,148,205.14
  5. Step 5: Solve for x
    x = 97,576,148,205.14/340,400.10
  6. Step 6: Final answer
    x = 286,651.35

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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.