Home / 291,742.02-402,054.36-211,032.66

Finding the Fourth Proportional to 291,742.02, 402,054.36 and 211,032.66

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Solution

The fourth proportional to 291,742.02, 402,054.36 and 211,032.66 is: 290,827.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,742.02 : 402,054.36 = 211,032.66 : x
  2. Step 2: Convert to fraction form
    291,742.02/402,054.36 = 211,032.66/x
  3. Step 3: Cross multiply
    291,742.02x = 402,054.36 × 211,032.66
  4. Step 4: Simplify right side
    291,742.02x = 84,846,601,055.40
  5. Step 5: Solve for x
    x = 84,846,601,055.40/291,742.02
  6. Step 6: Final answer
    x = 290,827.50

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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.