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Finding the Fourth Proportional to 292,434.80, 438,767.40 and 114,911.60

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Solution

The fourth proportional to 292,434.80, 438,767.40 and 114,911.60 is: 172,412.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,434.80 : 438,767.40 = 114,911.60 : x
  2. Step 2: Convert to fraction form
    292,434.80/438,767.40 = 114,911.60/x
  3. Step 3: Cross multiply
    292,434.80x = 438,767.40 × 114,911.60
  4. Step 4: Simplify right side
    292,434.80x = 50,419,463,961.84
  5. Step 5: Solve for x
    x = 50,419,463,961.84/292,434.80
  6. Step 6: Final answer
    x = 172,412.67

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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.