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Finding the Fourth Proportional to 389,095.82, 537,072.10 and 228,003.22

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Solution

The fourth proportional to 389,095.82, 537,072.10 and 228,003.22 is: 314,714.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,095.82 : 537,072.10 = 228,003.22 : x
  2. Step 2: Convert to fraction form
    389,095.82/537,072.10 = 228,003.22/x
  3. Step 3: Cross multiply
    389,095.82x = 537,072.10 × 228,003.22
  4. Step 4: Simplify right side
    389,095.82x = 122,454,168,172.16
  5. Step 5: Solve for x
    x = 122,454,168,172.16/389,095.82
  6. Step 6: Final answer
    x = 314,714.68

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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.