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Finding the Fourth Proportional to 389,296.58, 537,127.61 and 228,064.95

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Solution

The fourth proportional to 389,296.58, 537,127.61 and 228,064.95 is: 314,670.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,296.58 : 537,127.61 = 228,064.95 : x
  2. Step 2: Convert to fraction form
    389,296.58/537,127.61 = 228,064.95/x
  3. Step 3: Cross multiply
    389,296.58x = 537,127.61 × 228,064.95
  4. Step 4: Simplify right side
    389,296.58x = 122,499,980,377.95
  5. Step 5: Solve for x
    x = 122,499,980,377.95/389,296.58
  6. Step 6: Final answer
    x = 314,670.07

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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.