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Finding the Fourth Proportional to 389,841.84, 537,986.24 and 228,699.63

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Solution

The fourth proportional to 389,841.84, 537,986.24 and 228,699.63 is: 315,608.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,841.84 : 537,986.24 = 228,699.63 : x
  2. Step 2: Convert to fraction form
    389,841.84/537,986.24 = 228,699.63/x
  3. Step 3: Cross multiply
    389,841.84x = 537,986.24 × 228,699.63
  4. Step 4: Simplify right side
    389,841.84x = 123,037,252,889.59
  5. Step 5: Solve for x
    x = 123,037,252,889.59/389,841.84
  6. Step 6: Final answer
    x = 315,608.13

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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.