Home / 292,028.78-402,969.66-215,588.54

Finding the Fourth Proportional to 292,028.78, 402,969.66 and 215,588.54

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Solution

The fourth proportional to 292,028.78, 402,969.66 and 215,588.54 is: 297,490.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,028.78 : 402,969.66 = 215,588.54 : x
  2. Step 2: Convert to fraction form
    292,028.78/402,969.66 = 215,588.54/x
  3. Step 3: Cross multiply
    292,028.78x = 402,969.66 × 215,588.54
  4. Step 4: Simplify right side
    292,028.78x = 86,875,640,663.70
  5. Step 5: Solve for x
    x = 86,875,640,663.70/292,028.78
  6. Step 6: Final answer
    x = 297,490.00

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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.