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Finding the Fourth Proportional to 257,012.67, 385,544.82 and 88,510.80

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Solution

The fourth proportional to 257,012.67, 385,544.82 and 88,510.80 is: 132,775.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,012.67 : 385,544.82 = 88,510.80 : x
  2. Step 2: Convert to fraction form
    257,012.67/385,544.82 = 88,510.80/x
  3. Step 3: Cross multiply
    257,012.67x = 385,544.82 × 88,510.80
  4. Step 4: Simplify right side
    257,012.67x = 34,124,880,454.06
  5. Step 5: Solve for x
    x = 34,124,880,454.06/257,012.67
  6. Step 6: Final answer
    x = 132,775.09

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1.5x scale

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.