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Finding the Fourth Proportional to 303,389.75, 418,678.04 and 169,253.75

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Solution

The fourth proportional to 303,389.75, 418,678.04 and 169,253.75 is: 233,570.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,389.75 : 418,678.04 = 169,253.75 : x
  2. Step 2: Convert to fraction form
    303,389.75/418,678.04 = 169,253.75/x
  3. Step 3: Cross multiply
    303,389.75x = 418,678.04 × 169,253.75
  4. Step 4: Simplify right side
    303,389.75x = 70,862,828,312.65
  5. Step 5: Solve for x
    x = 70,862,828,312.65/303,389.75
  6. Step 6: Final answer
    x = 233,570.28

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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.