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Finding the Fourth Proportional to 438,002.28, 604,443.30 and 236,798.28

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Solution

The fourth proportional to 438,002.28, 604,443.30 and 236,798.28 is: 326,781.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,002.28 : 604,443.30 = 236,798.28 : x
  2. Step 2: Convert to fraction form
    438,002.28/604,443.30 = 236,798.28/x
  3. Step 3: Cross multiply
    438,002.28x = 604,443.30 × 236,798.28
  4. Step 4: Simplify right side
    438,002.28x = 143,131,133,797.52
  5. Step 5: Solve for x
    x = 143,131,133,797.52/438,002.28
  6. Step 6: Final answer
    x = 326,781.71

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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.