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Finding the Fourth Proportional to 485,518.25, 728,277.38 and 153,094.25

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Solution

The fourth proportional to 485,518.25, 728,277.38 and 153,094.25 is: 229,641.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,518.25 : 728,277.38 = 153,094.25 : x
  2. Step 2: Convert to fraction form
    485,518.25/728,277.38 = 153,094.25/x
  3. Step 3: Cross multiply
    485,518.25x = 728,277.38 × 153,094.25
  4. Step 4: Simplify right side
    485,518.25x = 111,495,079,283.07
  5. Step 5: Solve for x
    x = 111,495,079,283.07/485,518.25
  6. Step 6: Final answer
    x = 229,641.38

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Similar ratio
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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.