Home / 385,731.65-578,689.86-160,967.05

Finding the Fourth Proportional to 385,731.65, 578,689.86 and 160,967.05

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Solution

The fourth proportional to 385,731.65, 578,689.86 and 160,967.05 is: 241,489.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,731.65 : 578,689.86 = 160,967.05 : x
  2. Step 2: Convert to fraction form
    385,731.65/578,689.86 = 160,967.05/x
  3. Step 3: Cross multiply
    385,731.65x = 578,689.86 × 160,967.05
  4. Step 4: Simplify right side
    385,731.65x = 93,149,999,629.11
  5. Step 5: Solve for x
    x = 93,149,999,629.11/385,731.65
  6. Step 6: Final answer
    x = 241,489.13

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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.