Home / 325,072.08-487,432.78-147,482.20

Finding the Fourth Proportional to 325,072.08, 487,432.78 and 147,482.20

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Solution

The fourth proportional to 325,072.08, 487,432.78 and 147,482.20 is: 221,143.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,072.08 : 487,432.78 = 147,482.20 : x
  2. Step 2: Convert to fraction form
    325,072.08/487,432.78 = 147,482.20/x
  3. Step 3: Cross multiply
    325,072.08x = 487,432.78 × 147,482.20
  4. Step 4: Simplify right side
    325,072.08x = 71,887,658,746.52
  5. Step 5: Solve for x
    x = 71,887,658,746.52/325,072.08
  6. Step 6: Final answer
    x = 221,143.75

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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.