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Finding the Fourth Proportional to 308,283.48, 425,381.76 and 187,360.20

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Solution

The fourth proportional to 308,283.48, 425,381.76 and 187,360.20 is: 258,527.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,283.48 : 425,381.76 = 187,360.20 : x
  2. Step 2: Convert to fraction form
    308,283.48/425,381.76 = 187,360.20/x
  3. Step 3: Cross multiply
    308,283.48x = 425,381.76 × 187,360.20
  4. Step 4: Simplify right side
    308,283.48x = 79,699,611,629.95
  5. Step 5: Solve for x
    x = 79,699,611,629.95/308,283.48
  6. Step 6: Final answer
    x = 258,527.03

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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.