Home / 211,980.47-292,519.28-121,337.15

Finding the Fourth Proportional to 211,980.47, 292,519.28 and 121,337.15

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Solution

The fourth proportional to 211,980.47, 292,519.28 and 121,337.15 is: 167,437.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,980.47 : 292,519.28 = 121,337.15 : x
  2. Step 2: Convert to fraction form
    211,980.47/292,519.28 = 121,337.15/x
  3. Step 3: Cross multiply
    211,980.47x = 292,519.28 × 121,337.15
  4. Step 4: Simplify right side
    211,980.47x = 35,493,454,596.00
  5. Step 5: Solve for x
    x = 35,493,454,596.00/211,980.47
  6. Step 6: Final answer
    x = 167,437.38

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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.