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Finding the Fourth Proportional to 302,009.71, 453,017.30 and 91,647.65

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Solution

The fourth proportional to 302,009.71, 453,017.30 and 91,647.65 is: 137,472.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,009.71 : 453,017.30 = 91,647.65 : x
  2. Step 2: Convert to fraction form
    302,009.71/453,017.30 = 91,647.65/x
  3. Step 3: Cross multiply
    302,009.71x = 453,017.30 × 91,647.65
  4. Step 4: Simplify right side
    302,009.71x = 41,517,970,954.35
  5. Step 5: Solve for x
    x = 41,517,970,954.35/302,009.71
  6. Step 6: Final answer
    x = 137,472.30

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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.