Home / 387,435.28-534,670.59-213,003.37

Finding the Fourth Proportional to 387,435.28, 534,670.59 and 213,003.37

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Solution

The fourth proportional to 387,435.28, 534,670.59 and 213,003.37 is: 293,950.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,435.28 : 534,670.59 = 213,003.37 : x
  2. Step 2: Convert to fraction form
    387,435.28/534,670.59 = 213,003.37/x
  3. Step 3: Cross multiply
    387,435.28x = 534,670.59 × 213,003.37
  4. Step 4: Simplify right side
    387,435.28x = 113,886,637,509.89
  5. Step 5: Solve for x
    x = 113,886,637,509.89/387,435.28
  6. Step 6: Final answer
    x = 293,950.10

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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.