Home / 258,287.08-356,439.56-156,311.32

Finding the Fourth Proportional to 258,287.08, 356,439.56 and 156,311.32

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Solution

The fourth proportional to 258,287.08, 356,439.56 and 156,311.32 is: 215,711.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,287.08 : 356,439.56 = 156,311.32 : x
  2. Step 2: Convert to fraction form
    258,287.08/356,439.56 = 156,311.32/x
  3. Step 3: Cross multiply
    258,287.08x = 356,439.56 × 156,311.32
  4. Step 4: Simplify right side
    258,287.08x = 55,715,538,123.82
  5. Step 5: Solve for x
    x = 55,715,538,123.82/258,287.08
  6. Step 6: Final answer
    x = 215,711.67

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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.