Home / 302,916.12-454,374.12-81,300.12

Finding the Fourth Proportional to 302,916.12, 454,374.12 and 81,300.12

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Solution

The fourth proportional to 302,916.12, 454,374.12 and 81,300.12 is: 121,950.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,916.12 : 454,374.12 = 81,300.12 : x
  2. Step 2: Convert to fraction form
    302,916.12/454,374.12 = 81,300.12/x
  3. Step 3: Cross multiply
    302,916.12x = 454,374.12 × 81,300.12
  4. Step 4: Simplify right side
    302,916.12x = 36,940,670,480.89
  5. Step 5: Solve for x
    x = 36,940,670,480.89/302,916.12
  6. Step 6: Final answer
    x = 121,950.16

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1.5x scale

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.