Home / 287,543.42-396,801.08-180,172.65

Finding the Fourth Proportional to 287,543.42, 396,801.08 and 180,172.65

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Solution

The fourth proportional to 287,543.42, 396,801.08 and 180,172.65 is: 248,632.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,543.42 : 396,801.08 = 180,172.65 : x
  2. Step 2: Convert to fraction form
    287,543.42/396,801.08 = 180,172.65/x
  3. Step 3: Cross multiply
    287,543.42x = 396,801.08 × 180,172.65
  4. Step 4: Simplify right side
    287,543.42x = 71,492,703,369.25
  5. Step 5: Solve for x
    x = 71,492,703,369.25/287,543.42
  6. Step 6: Final answer
    x = 248,632.72

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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.