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Finding the Fourth Proportional to 153,323.60, 230,032.49 and 78,496.28

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Solution

The fourth proportional to 153,323.60, 230,032.49 and 78,496.28 is: 117,768.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,323.60 : 230,032.49 = 78,496.28 : x
  2. Step 2: Convert to fraction form
    153,323.60/230,032.49 = 78,496.28/x
  3. Step 3: Cross multiply
    153,323.60x = 230,032.49 × 78,496.28
  4. Step 4: Simplify right side
    153,323.60x = 18,056,693,201.49
  5. Step 5: Solve for x
    x = 18,056,693,201.49/153,323.60
  6. Step 6: Final answer
    x = 117,768.52

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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.