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Finding the Fourth Proportional to 153,254.40, 229,881.60 and 90,009.60

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Solution

The fourth proportional to 153,254.40, 229,881.60 and 90,009.60 is: 135,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,254.40 : 229,881.60 = 90,009.60 : x
  2. Step 2: Convert to fraction form
    153,254.40/229,881.60 = 90,009.60/x
  3. Step 3: Cross multiply
    153,254.40x = 229,881.60 × 90,009.60
  4. Step 4: Simplify right side
    153,254.40x = 20,691,550,863.36
  5. Step 5: Solve for x
    x = 20,691,550,863.36/153,254.40
  6. Step 6: Final answer
    x = 135,014.40

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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.