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Finding the Fourth Proportional to 438,290.40, 604,840.76 and 237,086.40

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Solution

The fourth proportional to 438,290.40, 604,840.76 and 237,086.40 is: 327,179.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,290.40 : 604,840.76 = 237,086.40 : x
  2. Step 2: Convert to fraction form
    438,290.40/604,840.76 = 237,086.40/x
  3. Step 3: Cross multiply
    438,290.40x = 604,840.76 × 237,086.40
  4. Step 4: Simplify right side
    438,290.40x = 143,399,518,361.66
  5. Step 5: Solve for x
    x = 143,399,518,361.66/438,290.40
  6. Step 6: Final answer
    x = 327,179.24

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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.