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Finding the Fourth Proportional to 340,293.48, 510,440.22 and 90,969

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Solution

The fourth proportional to 340,293.48, 510,440.22 and 90,969 is: 136,453.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,293.48 : 510,440.22 = 90,969 : x
  2. Step 2: Convert to fraction form
    340,293.48/510,440.22 = 90,969/x
  3. Step 3: Cross multiply
    340,293.48x = 510,440.22 × 90,969
  4. Step 4: Simplify right side
    340,293.48x = 46,434,236,373.18
  5. Step 5: Solve for x
    x = 46,434,236,373.18/340,293.48
  6. Step 6: Final answer
    x = 136,453.50

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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.