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Finding the Fourth Proportional to 387,752.72, 534,880.20 and 226,573.52

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Solution

The fourth proportional to 387,752.72, 534,880.20 and 226,573.52 is: 312,543.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,752.72 : 534,880.20 = 226,573.52 : x
  2. Step 2: Convert to fraction form
    387,752.72/534,880.20 = 226,573.52/x
  3. Step 3: Cross multiply
    387,752.72x = 534,880.20 × 226,573.52
  4. Step 4: Simplify right side
    387,752.72x = 121,189,689,692.30
  5. Step 5: Solve for x
    x = 121,189,689,692.30/387,752.72
  6. Step 6: Final answer
    x = 312,543.75

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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.