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Finding the Fourth Proportional to 292,004.80, 438,007.20 and 292,004.80

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Solution

The fourth proportional to 292,004.80, 438,007.20 and 292,004.80 is: 438,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,004.80 : 438,007.20 = 292,004.80 : x
  2. Step 2: Convert to fraction form
    292,004.80/438,007.20 = 292,004.80/x
  3. Step 3: Cross multiply
    292,004.80x = 438,007.20 × 292,004.80
  4. Step 4: Simplify right side
    292,004.80x = 127,900,204,834.56
  5. Step 5: Solve for x
    x = 127,900,204,834.56/292,004.80
  6. Step 6: Final answer
    x = 438,007.20

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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.