Home / 282,719.64-390,209.84-167,976.20

Finding the Fourth Proportional to 282,719.64, 390,209.84 and 167,976.20

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Solution

The fourth proportional to 282,719.64, 390,209.84 and 167,976.20 is: 231,840.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,719.64 : 390,209.84 = 167,976.20 : x
  2. Step 2: Convert to fraction form
    282,719.64/390,209.84 = 167,976.20/x
  3. Step 3: Cross multiply
    282,719.64x = 390,209.84 × 167,976.20
  4. Step 4: Simplify right side
    282,719.64x = 65,545,966,125.81
  5. Step 5: Solve for x
    x = 65,545,966,125.81/282,719.64
  6. Step 6: Final answer
    x = 231,840.87

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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.