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Finding the Fourth Proportional to 302,689.00, 454,038.96 and 78,054.13

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Solution

The fourth proportional to 302,689.00, 454,038.96 and 78,054.13 is: 117,082.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,689.00 : 454,038.96 = 78,054.13 : x
  2. Step 2: Convert to fraction form
    302,689.00/454,038.96 = 78,054.13/x
  3. Step 3: Cross multiply
    302,689.00x = 454,038.96 × 78,054.13
  4. Step 4: Simplify right side
    302,689.00x = 35,439,613,738.71
  5. Step 5: Solve for x
    x = 35,439,613,738.71/302,689.00
  6. Step 6: Final answer
    x = 117,082.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.