Home / 382,381.60-573,313.20-145,688.80

Finding the Fourth Proportional to 382,381.60, 573,313.20 and 145,688.80

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Solution

The fourth proportional to 382,381.60, 573,313.20 and 145,688.80 is: 218,434.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,381.60 : 573,313.20 = 145,688.80 : x
  2. Step 2: Convert to fraction form
    382,381.60/573,313.20 = 145,688.80/x
  3. Step 3: Cross multiply
    382,381.60x = 573,313.20 × 145,688.80
  4. Step 4: Simplify right side
    382,381.60x = 83,525,312,132.16
  5. Step 5: Solve for x
    x = 83,525,312,132.16/382,381.60
  6. Step 6: Final answer
    x = 218,434.44

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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.