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Finding the Fourth Proportional to 389,223.04, 537,126.24 and 210,375.04

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Solution

The fourth proportional to 389,223.04, 537,126.24 and 210,375.04 is: 290,316.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,223.04 : 537,126.24 = 210,375.04 : x
  2. Step 2: Convert to fraction form
    389,223.04/537,126.24 = 210,375.04/x
  3. Step 3: Cross multiply
    389,223.04x = 537,126.24 × 210,375.04
  4. Step 4: Simplify right side
    389,223.04x = 112,997,954,225.05
  5. Step 5: Solve for x
    x = 112,997,954,225.05/389,223.04
  6. Step 6: Final answer
    x = 290,316.71

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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.