Home / 385,725.15-578,680.11-160,960.55

Finding the Fourth Proportional to 385,725.15, 578,680.11 and 160,960.55

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Solution

The fourth proportional to 385,725.15, 578,680.11 and 160,960.55 is: 241,479.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,725.15 : 578,680.11 = 160,960.55 : x
  2. Step 2: Convert to fraction form
    385,725.15/578,680.11 = 160,960.55/x
  3. Step 3: Cross multiply
    385,725.15x = 578,680.11 × 160,960.55
  4. Step 4: Simplify right side
    385,725.15x = 93,144,665,886.26
  5. Step 5: Solve for x
    x = 93,144,665,886.26/385,725.15
  6. Step 6: Final answer
    x = 241,479.37

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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.