Home / 389,820.04-537,951.72-210,972.04

Finding the Fourth Proportional to 389,820.04, 537,951.72 and 210,972.04

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Solution

The fourth proportional to 389,820.04, 537,951.72 and 210,972.04 is: 291,141.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,820.04 : 537,951.72 = 210,972.04 : x
  2. Step 2: Convert to fraction form
    389,820.04/537,951.72 = 210,972.04/x
  3. Step 3: Cross multiply
    389,820.04x = 537,951.72 × 210,972.04
  4. Step 4: Simplify right side
    389,820.04x = 113,492,771,789.91
  5. Step 5: Solve for x
    x = 113,492,771,789.91/389,820.04
  6. Step 6: Final answer
    x = 291,141.45

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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.