Home / 302,945.10-454,417.65-103,490.70

Finding the Fourth Proportional to 302,945.10, 454,417.65 and 103,490.70

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Solution

The fourth proportional to 302,945.10, 454,417.65 and 103,490.70 is: 155,236.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,945.10 : 454,417.65 = 103,490.70 : x
  2. Step 2: Convert to fraction form
    302,945.10/454,417.65 = 103,490.70/x
  3. Step 3: Cross multiply
    302,945.10x = 454,417.65 × 103,490.70
  4. Step 4: Simplify right side
    302,945.10x = 47,028,000,690.86
  5. Step 5: Solve for x
    x = 47,028,000,690.86/302,945.10
  6. Step 6: Final answer
    x = 155,236.05

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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.