Home / 283,800.28-391,637.05-154,741.16

Finding the Fourth Proportional to 283,800.28, 391,637.05 and 154,741.16

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Solution

The fourth proportional to 283,800.28, 391,637.05 and 154,741.16 is: 213,538.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,800.28 : 391,637.05 = 154,741.16 : x
  2. Step 2: Convert to fraction form
    283,800.28/391,637.05 = 154,741.16/x
  3. Step 3: Cross multiply
    283,800.28x = 391,637.05 × 154,741.16
  4. Step 4: Simplify right side
    283,800.28x = 60,602,371,415.98
  5. Step 5: Solve for x
    x = 60,602,371,415.98/283,800.28
  6. Step 6: Final answer
    x = 213,538.80

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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.