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Finding the Fourth Proportional to 288,037.32, 397,491.71 and 160,712.91

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Solution

The fourth proportional to 288,037.32, 397,491.71 and 160,712.91 is: 221,783.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,037.32 : 397,491.71 = 160,712.91 : x
  2. Step 2: Convert to fraction form
    288,037.32/397,491.71 = 160,712.91/x
  3. Step 3: Cross multiply
    288,037.32x = 397,491.71 × 160,712.91
  4. Step 4: Simplify right side
    288,037.32x = 63,882,048,611.41
  5. Step 5: Solve for x
    x = 63,882,048,611.41/288,037.32
  6. Step 6: Final answer
    x = 221,783.93

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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.