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Finding the Fourth Proportional to 302,639.67, 417,692.67 and 230,884.20

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Solution

The fourth proportional to 302,639.67, 417,692.67 and 230,884.20 is: 318,658.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,639.67 : 417,692.67 = 230,884.20 : x
  2. Step 2: Convert to fraction form
    302,639.67/417,692.67 = 230,884.20/x
  3. Step 3: Cross multiply
    302,639.67x = 417,692.67 × 230,884.20
  4. Step 4: Simplify right side
    302,639.67x = 96,438,637,958.81
  5. Step 5: Solve for x
    x = 96,438,637,958.81/302,639.67
  6. Step 6: Final answer
    x = 318,658.28

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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.