Home / 385,516.16-532,008.48-215,751.52

Finding the Fourth Proportional to 385,516.16, 532,008.48 and 215,751.52

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Solution

The fourth proportional to 385,516.16, 532,008.48 and 215,751.52 is: 297,734.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,516.16 : 532,008.48 = 215,751.52 : x
  2. Step 2: Convert to fraction form
    385,516.16/532,008.48 = 215,751.52/x
  3. Step 3: Cross multiply
    385,516.16x = 532,008.48 × 215,751.52
  4. Step 4: Simplify right side
    385,516.16x = 114,781,638,212.89
  5. Step 5: Solve for x
    x = 114,781,638,212.89/385,516.16
  6. Step 6: Final answer
    x = 297,734.96

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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.