Home / 389,722.18-537,818.14-210,874.18

Finding the Fourth Proportional to 389,722.18, 537,818.14 and 210,874.18

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Solution

The fourth proportional to 389,722.18, 537,818.14 and 210,874.18 is: 291,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,722.18 : 537,818.14 = 210,874.18 : x
  2. Step 2: Convert to fraction form
    389,722.18/537,818.14 = 210,874.18/x
  3. Step 3: Cross multiply
    389,722.18x = 537,818.14 × 210,874.18
  4. Step 4: Simplify right side
    389,722.18x = 113,411,959,261.63
  5. Step 5: Solve for x
    x = 113,411,959,261.63/389,722.18
  6. Step 6: Final answer
    x = 291,007.20

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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.