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Finding the Fourth Proportional to 485,077.60, 727,616.40 and 152,653.60

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Solution

The fourth proportional to 485,077.60, 727,616.40 and 152,653.60 is: 228,980.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,077.60 : 727,616.40 = 152,653.60 : x
  2. Step 2: Convert to fraction form
    485,077.60/727,616.40 = 152,653.60/x
  3. Step 3: Cross multiply
    485,077.60x = 727,616.40 × 152,653.60
  4. Step 4: Simplify right side
    485,077.60x = 111,073,262,879.04
  5. Step 5: Solve for x
    x = 111,073,262,879.04/485,077.60
  6. Step 6: Final answer
    x = 228,980.40

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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.