Home / 211,319.33-291,650.56-130,772.81

Finding the Fourth Proportional to 211,319.33, 291,650.56 and 130,772.81

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Solution

The fourth proportional to 211,319.33, 291,650.56 and 130,772.81 is: 180,484.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,319.33 : 291,650.56 = 130,772.81 : x
  2. Step 2: Convert to fraction form
    211,319.33/291,650.56 = 130,772.81/x
  3. Step 3: Cross multiply
    211,319.33x = 291,650.56 × 130,772.81
  4. Step 4: Simplify right side
    211,319.33x = 38,139,963,671.47
  5. Step 5: Solve for x
    x = 38,139,963,671.47/211,319.33
  6. Step 6: Final answer
    x = 180,484.98

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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.