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Finding the Fourth Proportional to 215,155.51, 296,920.28 and 118,361.93

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Solution

The fourth proportional to 215,155.51, 296,920.28 and 118,361.93 is: 163,342.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,155.51 : 296,920.28 = 118,361.93 : x
  2. Step 2: Convert to fraction form
    215,155.51/296,920.28 = 118,361.93/x
  3. Step 3: Cross multiply
    215,155.51x = 296,920.28 × 118,361.93
  4. Step 4: Simplify right side
    215,155.51x = 35,144,056,208.24
  5. Step 5: Solve for x
    x = 35,144,056,208.24/215,155.51
  6. Step 6: Final answer
    x = 163,342.58

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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.