Home / 211,460.47-291,778.14-120,803.92

Finding the Fourth Proportional to 211,460.47, 291,778.14 and 120,803.92

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Solution

The fourth proportional to 211,460.47, 291,778.14 and 120,803.92 is: 166,688.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,460.47 : 291,778.14 = 120,803.92 : x
  2. Step 2: Convert to fraction form
    211,460.47/291,778.14 = 120,803.92/x
  3. Step 3: Cross multiply
    211,460.47x = 291,778.14 × 120,803.92
  4. Step 4: Simplify right side
    211,460.47x = 35,247,943,082.31
  5. Step 5: Solve for x
    x = 35,247,943,082.31/211,460.47
  6. Step 6: Final answer
    x = 166,688.10

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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.