Home / 387,289.27-534,509.37-217,523.41

Finding the Fourth Proportional to 387,289.27, 534,509.37 and 217,523.41

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Solution

The fourth proportional to 387,289.27, 534,509.37 and 217,523.41 is: 300,210.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,289.27 : 534,509.37 = 217,523.41 : x
  2. Step 2: Convert to fraction form
    387,289.27/534,509.37 = 217,523.41/x
  3. Step 3: Cross multiply
    387,289.27x = 534,509.37 × 217,523.41
  4. Step 4: Simplify right side
    387,289.27x = 116,268,300,839.35
  5. Step 5: Solve for x
    x = 116,268,300,839.35/387,289.27
  6. Step 6: Final answer
    x = 300,210.49

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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.