Home / 291,869.28-402,778.85-157,733.28

Finding the Fourth Proportional to 291,869.28, 402,778.85 and 157,733.28

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Solution

The fourth proportional to 291,869.28, 402,778.85 and 157,733.28 is: 217,671.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,869.28 : 402,778.85 = 157,733.28 : x
  2. Step 2: Convert to fraction form
    291,869.28/402,778.85 = 157,733.28/x
  3. Step 3: Cross multiply
    291,869.28x = 402,778.85 × 157,733.28
  4. Step 4: Simplify right side
    291,869.28x = 63,531,628,336.46
  5. Step 5: Solve for x
    x = 63,531,628,336.46/291,869.28
  6. Step 6: Final answer
    x = 217,671.51

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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.