Home / 229,113.12-316,288.08-205,143.60

Finding the Fourth Proportional to 229,113.12, 316,288.08 and 205,143.60

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Solution

The fourth proportional to 229,113.12, 316,288.08 and 205,143.60 is: 283,198.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,113.12 : 316,288.08 = 205,143.60 : x
  2. Step 2: Convert to fraction form
    229,113.12/316,288.08 = 205,143.60/x
  3. Step 3: Cross multiply
    229,113.12x = 316,288.08 × 205,143.60
  4. Step 4: Simplify right side
    229,113.12x = 64,884,475,368.29
  5. Step 5: Solve for x
    x = 64,884,475,368.29/229,113.12
  6. Step 6: Final answer
    x = 283,198.43

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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.