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Finding the Fourth Proportional to 501,755.74, 692,161.37 and 308,207.08

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Solution

The fourth proportional to 501,755.74, 692,161.37 and 308,207.08 is: 425,165.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,755.74 : 692,161.37 = 308,207.08 : x
  2. Step 2: Convert to fraction form
    501,755.74/692,161.37 = 308,207.08/x
  3. Step 3: Cross multiply
    501,755.74x = 692,161.37 × 308,207.08
  4. Step 4: Simplify right side
    501,755.74x = 213,329,033,056.70
  5. Step 5: Solve for x
    x = 213,329,033,056.70/501,755.74
  6. Step 6: Final answer
    x = 425,165.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.