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Finding the Fourth Proportional to 340,289.33, 510,395.11 and 90,990.77

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Solution

The fourth proportional to 340,289.33, 510,395.11 and 90,990.77 is: 136,475.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,289.33 : 510,395.11 = 90,990.77 : x
  2. Step 2: Convert to fraction form
    340,289.33/510,395.11 = 90,990.77/x
  3. Step 3: Cross multiply
    340,289.33x = 510,395.11 × 90,990.77
  4. Step 4: Simplify right side
    340,289.33x = 46,441,244,666.48
  5. Step 5: Solve for x
    x = 46,441,244,666.48/340,289.33
  6. Step 6: Final answer
    x = 136,475.76

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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.