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Finding the Fourth Proportional to 340,308.32, 510,423.42 and 91,009.76

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Solution

The fourth proportional to 340,308.32, 510,423.42 and 91,009.76 is: 136,504.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,308.32 : 510,423.42 = 91,009.76 : x
  2. Step 2: Convert to fraction form
    340,308.32/510,423.42 = 91,009.76/x
  3. Step 3: Cross multiply
    340,308.32x = 510,423.42 × 91,009.76
  4. Step 4: Simplify right side
    340,308.32x = 46,453,512,952.58
  5. Step 5: Solve for x
    x = 46,453,512,952.58/340,308.32
  6. Step 6: Final answer
    x = 136,504.19

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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.