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Finding the Fourth Proportional to 153,460.60, 229,931.70 and 74,404.60

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Solution

The fourth proportional to 153,460.60, 229,931.70 and 74,404.60 is: 111,481.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,460.60 : 229,931.70 = 74,404.60 : x
  2. Step 2: Convert to fraction form
    153,460.60/229,931.70 = 74,404.60/x
  3. Step 3: Cross multiply
    153,460.60x = 229,931.70 × 74,404.60
  4. Step 4: Simplify right side
    153,460.60x = 17,107,976,165.82
  5. Step 5: Solve for x
    x = 17,107,976,165.82/153,460.60
  6. Step 6: Final answer
    x = 111,481.23

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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.