Home / 387,370.43-534,570.66-215,282.93

Finding the Fourth Proportional to 387,370.43, 534,570.66 and 215,282.93

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Solution

The fourth proportional to 387,370.43, 534,570.66 and 215,282.93 is: 297,090.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,370.43 : 534,570.66 = 215,282.93 : x
  2. Step 2: Convert to fraction form
    387,370.43/534,570.66 = 215,282.93/x
  3. Step 3: Cross multiply
    387,370.43x = 534,570.66 × 215,282.93
  4. Step 4: Simplify right side
    387,370.43x = 115,083,935,303.98
  5. Step 5: Solve for x
    x = 115,083,935,303.98/387,370.43
  6. Step 6: Final answer
    x = 297,090.14

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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.