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Finding the Fourth Proportional to 389,625.63, 537,678.10 and 217,546.24

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Solution

The fourth proportional to 389,625.63, 537,678.10 and 217,546.24 is: 300,210.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,625.63 : 537,678.10 = 217,546.24 : x
  2. Step 2: Convert to fraction form
    389,625.63/537,678.10 = 217,546.24/x
  3. Step 3: Cross multiply
    389,625.63x = 537,678.10 × 217,546.24
  4. Step 4: Simplify right side
    389,625.63x = 116,969,848,985.34
  5. Step 5: Solve for x
    x = 116,969,848,985.34/389,625.63
  6. Step 6: Final answer
    x = 300,210.87

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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.