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Finding the Fourth Proportional to 389,480.41, 537,484.58 and 210,632.41

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Solution

The fourth proportional to 389,480.41, 537,484.58 and 210,632.41 is: 290,673.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,480.41 : 537,484.58 = 210,632.41 : x
  2. Step 2: Convert to fraction form
    389,480.41/537,484.58 = 210,632.41/x
  3. Step 3: Cross multiply
    389,480.41x = 537,484.58 × 210,632.41
  4. Step 4: Simplify right side
    389,480.41x = 113,211,672,423.24
  5. Step 5: Solve for x
    x = 113,211,672,423.24/389,480.41
  6. Step 6: Final answer
    x = 290,673.60

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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.