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Finding the Fourth Proportional to 340,292.78, 510,400.22 and 90,994.22

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Solution

The fourth proportional to 340,292.78, 510,400.22 and 90,994.22 is: 136,480.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,292.78 : 510,400.22 = 90,994.22 : x
  2. Step 2: Convert to fraction form
    340,292.78/510,400.22 = 90,994.22/x
  3. Step 3: Cross multiply
    340,292.78x = 510,400.22 × 90,994.22
  4. Step 4: Simplify right side
    340,292.78x = 46,443,466,899.76
  5. Step 5: Solve for x
    x = 46,443,466,899.76/340,292.78
  6. Step 6: Final answer
    x = 136,480.91

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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.