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Finding the Fourth Proportional to 325,387.60, 487,967.04 and 97,615.30

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Solution

The fourth proportional to 325,387.60, 487,967.04 and 97,615.30 is: 146,388.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,387.60 : 487,967.04 = 97,615.30 : x
  2. Step 2: Convert to fraction form
    325,387.60/487,967.04 = 97,615.30/x
  3. Step 3: Cross multiply
    325,387.60x = 487,967.04 × 97,615.30
  4. Step 4: Simplify right side
    325,387.60x = 47,633,048,999.71
  5. Step 5: Solve for x
    x = 47,633,048,999.71/325,387.60
  6. Step 6: Final answer
    x = 146,388.64

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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.