Home / 292,313.40-438,437.70-81,972.60

Finding the Fourth Proportional to 292,313.40, 438,437.70 and 81,972.60

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Solution

The fourth proportional to 292,313.40, 438,437.70 and 81,972.60 is: 122,949.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,313.40 : 438,437.70 = 81,972.60 : x
  2. Step 2: Convert to fraction form
    292,313.40/438,437.70 = 81,972.60/x
  3. Step 3: Cross multiply
    292,313.40x = 438,437.70 × 81,972.60
  4. Step 4: Simplify right side
    292,313.40x = 35,939,878,207.02
  5. Step 5: Solve for x
    x = 35,939,878,207.02/292,313.40
  6. Step 6: Final answer
    x = 122,949.81

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1.5x scale

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.