Home / 384,877.34-531,121.56-215,127.26

Finding the Fourth Proportional to 384,877.34, 531,121.56 and 215,127.26

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Solution

The fourth proportional to 384,877.34, 531,121.56 and 215,127.26 is: 296,870.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,877.34 : 531,121.56 = 215,127.26 : x
  2. Step 2: Convert to fraction form
    384,877.34/531,121.56 = 215,127.26/x
  3. Step 3: Cross multiply
    384,877.34x = 531,121.56 × 215,127.26
  4. Step 4: Simplify right side
    384,877.34x = 114,258,726,181.89
  5. Step 5: Solve for x
    x = 114,258,726,181.89/384,877.34
  6. Step 6: Final answer
    x = 296,870.49

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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.