Home / 387,190.13-534,322.37-217,424.25

Finding the Fourth Proportional to 387,190.13, 534,322.37 and 217,424.25

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Solution

The fourth proportional to 387,190.13, 534,322.37 and 217,424.25 is: 300,045.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,190.13 : 534,322.37 = 217,424.25 : x
  2. Step 2: Convert to fraction form
    387,190.13/534,322.37 = 217,424.25/x
  3. Step 3: Cross multiply
    387,190.13x = 534,322.37 × 217,424.25
  4. Step 4: Simplify right side
    387,190.13x = 116,174,641,099.03
  5. Step 5: Solve for x
    x = 116,174,641,099.03/387,190.13
  6. Step 6: Final answer
    x = 300,045.47

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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.