Home / 284,025.45-391,947.48-156,698.31

Finding the Fourth Proportional to 284,025.45, 391,947.48 and 156,698.31

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Solution

The fourth proportional to 284,025.45, 391,947.48 and 156,698.31 is: 216,239.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,025.45 : 391,947.48 = 156,698.31 : x
  2. Step 2: Convert to fraction form
    284,025.45/391,947.48 = 156,698.31/x
  3. Step 3: Cross multiply
    284,025.45x = 391,947.48 × 156,698.31
  4. Step 4: Simplify right side
    284,025.45x = 61,417,507,724.76
  5. Step 5: Solve for x
    x = 61,417,507,724.76/284,025.45
  6. Step 6: Final answer
    x = 216,239.45

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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.