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Finding the Fourth Proportional to 387,303.01, 534,528.18 and 217,537.13

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Solution

The fourth proportional to 387,303.01, 534,528.18 and 217,537.13 is: 300,229.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,303.01 : 534,528.18 = 217,537.13 : x
  2. Step 2: Convert to fraction form
    387,303.01/534,528.18 = 217,537.13/x
  3. Step 3: Cross multiply
    387,303.01x = 534,528.18 × 217,537.13
  4. Step 4: Simplify right side
    387,303.01x = 116,279,725,093.64
  5. Step 5: Solve for x
    x = 116,279,725,093.64/387,303.01
  6. Step 6: Final answer
    x = 300,229.34

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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.