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Finding the Fourth Proportional to 225,140.01, 310,662.77 and 128,356.35

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Solution

The fourth proportional to 225,140.01, 310,662.77 and 128,356.35 is: 177,114.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,140.01 : 310,662.77 = 128,356.35 : x
  2. Step 2: Convert to fraction form
    225,140.01/310,662.77 = 128,356.35/x
  3. Step 3: Cross multiply
    225,140.01x = 310,662.77 × 128,356.35
  4. Step 4: Simplify right side
    225,140.01x = 39,875,538,005.67
  5. Step 5: Solve for x
    x = 39,875,538,005.67/225,140.01
  6. Step 6: Final answer
    x = 177,114.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.