Home / 284,050.07-391,987.61-154,988.51

Finding the Fourth Proportional to 284,050.07, 391,987.61 and 154,988.51

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Solution

The fourth proportional to 284,050.07, 391,987.61 and 154,988.51 is: 213,883.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,050.07 : 391,987.61 = 154,988.51 : x
  2. Step 2: Convert to fraction form
    284,050.07/391,987.61 = 154,988.51/x
  3. Step 3: Cross multiply
    284,050.07x = 391,987.61 × 154,988.51
  4. Step 4: Simplify right side
    284,050.07x = 60,753,574,837.42
  5. Step 5: Solve for x
    x = 60,753,574,837.42/284,050.07
  6. Step 6: Final answer
    x = 213,883.33

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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.