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Finding the Fourth Proportional to 307,641.99, 424,545.15 and 171,674.51

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Solution

The fourth proportional to 307,641.99, 424,545.15 and 171,674.51 is: 236,910.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,641.99 : 424,545.15 = 171,674.51 : x
  2. Step 2: Convert to fraction form
    307,641.99/424,545.15 = 171,674.51/x
  3. Step 3: Cross multiply
    307,641.99x = 424,545.15 × 171,674.51
  4. Step 4: Simplify right side
    307,641.99x = 72,883,578,476.40
  5. Step 5: Solve for x
    x = 72,883,578,476.40/307,641.99
  6. Step 6: Final answer
    x = 236,910.37

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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.