Home / 285,094.09-393,427.56-157,776.67

Finding the Fourth Proportional to 285,094.09, 393,427.56 and 157,776.67

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Solution

The fourth proportional to 285,094.09, 393,427.56 and 157,776.67 is: 217,730.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,094.09 : 393,427.56 = 157,776.67 : x
  2. Step 2: Convert to fraction form
    285,094.09/393,427.56 = 157,776.67/x
  3. Step 3: Cross multiply
    285,094.09x = 393,427.56 × 157,776.67
  4. Step 4: Simplify right side
    285,094.09x = 62,073,690,303.03
  5. Step 5: Solve for x
    x = 62,073,690,303.03/285,094.09
  6. Step 6: Final answer
    x = 217,730.54

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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.