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Finding the Fourth Proportional to 340,810.84, 511,216.38 and 91,492.84

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Solution

The fourth proportional to 340,810.84, 511,216.38 and 91,492.84 is: 137,239.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,810.84 : 511,216.38 = 91,492.84 : x
  2. Step 2: Convert to fraction form
    340,810.84/511,216.38 = 91,492.84/x
  3. Step 3: Cross multiply
    340,810.84x = 511,216.38 × 91,492.84
  4. Step 4: Simplify right side
    340,810.84x = 46,772,638,460.72
  5. Step 5: Solve for x
    x = 46,772,638,460.72/340,810.84
  6. Step 6: Final answer
    x = 137,239.29

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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.