Home / 215,114.72-296,865.54-118,322.69

Finding the Fourth Proportional to 215,114.72, 296,865.54 and 118,322.69

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Solution

The fourth proportional to 215,114.72, 296,865.54 and 118,322.69 is: 163,289.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,114.72 : 296,865.54 = 118,322.69 : x
  2. Step 2: Convert to fraction form
    215,114.72/296,865.54 = 118,322.69/x
  3. Step 3: Cross multiply
    215,114.72x = 296,865.54 × 118,322.69
  4. Step 4: Simplify right side
    215,114.72x = 35,125,927,776.77
  5. Step 5: Solve for x
    x = 35,125,927,776.77/215,114.72
  6. Step 6: Final answer
    x = 163,289.28

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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.