Home / 302,979.60-417,957.98-231,235.11

Finding the Fourth Proportional to 302,979.60, 417,957.98 and 231,235.11

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Solution

The fourth proportional to 302,979.60, 417,957.98 and 231,235.11 is: 318,987.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,979.60 : 417,957.98 = 231,235.11 : x
  2. Step 2: Convert to fraction form
    302,979.60/417,957.98 = 231,235.11/x
  3. Step 3: Cross multiply
    302,979.60x = 417,957.98 × 231,235.11
  4. Step 4: Simplify right side
    302,979.60x = 96,646,558,324.50
  5. Step 5: Solve for x
    x = 96,646,558,324.50/302,979.60
  6. Step 6: Final answer
    x = 318,987.02

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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.