Home / 326,105.40-489,158.10-236,875.80

Finding the Fourth Proportional to 326,105.40, 489,158.10 and 236,875.80

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Solution

The fourth proportional to 326,105.40, 489,158.10 and 236,875.80 is: 355,313.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,105.40 : 489,158.10 = 236,875.80 : x
  2. Step 2: Convert to fraction form
    326,105.40/489,158.10 = 236,875.80/x
  3. Step 3: Cross multiply
    326,105.40x = 489,158.10 × 236,875.80
  4. Step 4: Simplify right side
    326,105.40x = 115,869,716,263.98
  5. Step 5: Solve for x
    x = 115,869,716,263.98/326,105.40
  6. Step 6: Final answer
    x = 355,313.70

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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.