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Finding the Fourth Proportional to 307,617.95, 424,381.88 and 192,818.22

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Solution

The fourth proportional to 307,617.95, 424,381.88 and 192,818.22 is: 266,007.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,617.95 : 424,381.88 = 192,818.22 : x
  2. Step 2: Convert to fraction form
    307,617.95/424,381.88 = 192,818.22/x
  3. Step 3: Cross multiply
    307,617.95x = 424,381.88 × 192,818.22
  4. Step 4: Simplify right side
    307,617.95x = 81,828,559,979.62
  5. Step 5: Solve for x
    x = 81,828,559,979.62/307,617.95
  6. Step 6: Final answer
    x = 266,007.10

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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.