Home / 389,816.04-537,946.20-210,968.04

Finding the Fourth Proportional to 389,816.04, 537,946.20 and 210,968.04

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Solution

The fourth proportional to 389,816.04, 537,946.20 and 210,968.04 is: 291,135.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,816.04 : 537,946.20 = 210,968.04 : x
  2. Step 2: Convert to fraction form
    389,816.04/537,946.20 = 210,968.04/x
  3. Step 3: Cross multiply
    389,816.04x = 537,946.20 × 210,968.04
  4. Step 4: Simplify right side
    389,816.04x = 113,489,455,439.45
  5. Step 5: Solve for x
    x = 113,489,455,439.45/389,816.04
  6. Step 6: Final answer
    x = 291,135.93

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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.