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Finding the Fourth Proportional to 325,069.58, 487,429.04 and 147,479.70

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Solution

The fourth proportional to 325,069.58, 487,429.04 and 147,479.70 is: 221,140.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,069.58 : 487,429.04 = 147,479.70 : x
  2. Step 2: Convert to fraction form
    325,069.58/487,429.04 = 147,479.70/x
  3. Step 3: Cross multiply
    325,069.58x = 487,429.04 × 147,479.70
  4. Step 4: Simplify right side
    325,069.58x = 71,885,888,590.49
  5. Step 5: Solve for x
    x = 71,885,888,590.49/325,069.58
  6. Step 6: Final answer
    x = 221,140.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.