Home / 279,436.75-385,622.76-152,113.30

Finding the Fourth Proportional to 279,436.75, 385,622.76 and 152,113.30

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Solution

The fourth proportional to 279,436.75, 385,622.76 and 152,113.30 is: 209,916.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,436.75 : 385,622.76 = 152,113.30 : x
  2. Step 2: Convert to fraction form
    279,436.75/385,622.76 = 152,113.30/x
  3. Step 3: Cross multiply
    279,436.75x = 385,622.76 × 152,113.30
  4. Step 4: Simplify right side
    279,436.75x = 58,658,350,578.71
  5. Step 5: Solve for x
    x = 58,658,350,578.71/279,436.75
  6. Step 6: Final answer
    x = 209,916.38

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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.