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Finding the Fourth Proportional to 389,392.86, 537,358.98 and 226,064.52

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Solution

The fourth proportional to 389,392.86, 537,358.98 and 226,064.52 is: 311,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,392.86 : 537,358.98 = 226,064.52 : x
  2. Step 2: Convert to fraction form
    389,392.86/537,358.98 = 226,064.52/x
  3. Step 3: Cross multiply
    389,392.86x = 537,358.98 × 226,064.52
  4. Step 4: Simplify right side
    389,392.86x = 121,477,799,881.39
  5. Step 5: Solve for x
    x = 121,477,799,881.39/389,392.86
  6. Step 6: Final answer
    x = 311,967.20

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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.