Home / 291,621.72-402,426.54-164,322.84

Finding the Fourth Proportional to 291,621.72, 402,426.54 and 164,322.84

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Solution

The fourth proportional to 291,621.72, 402,426.54 and 164,322.84 is: 226,759.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,621.72 : 402,426.54 = 164,322.84 : x
  2. Step 2: Convert to fraction form
    291,621.72/402,426.54 = 164,322.84/x
  3. Step 3: Cross multiply
    291,621.72x = 402,426.54 × 164,322.84
  4. Step 4: Simplify right side
    291,621.72x = 66,127,871,944.17
  5. Step 5: Solve for x
    x = 66,127,871,944.17/291,621.72
  6. Step 6: Final answer
    x = 226,759.08

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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.