Home / 387,292.69-534,514.03-217,526.81

Finding the Fourth Proportional to 387,292.69, 534,514.03 and 217,526.81

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Solution

The fourth proportional to 387,292.69, 534,514.03 and 217,526.81 is: 300,215.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,292.69 : 534,514.03 = 217,526.81 : x
  2. Step 2: Convert to fraction form
    387,292.69/534,514.03 = 217,526.81/x
  3. Step 3: Cross multiply
    387,292.69x = 534,514.03 × 217,526.81
  4. Step 4: Simplify right side
    387,292.69x = 116,271,131,846.14
  5. Step 5: Solve for x
    x = 116,271,131,846.14/387,292.69
  6. Step 6: Final answer
    x = 300,215.15

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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.