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Finding the Fourth Proportional to 316,818, 437,407.56 and 203,837.04

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Solution

The fourth proportional to 316,818, 437,407.56 and 203,837.04 is: 281,422.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,818 : 437,407.56 = 203,837.04 : x
  2. Step 2: Convert to fraction form
    316,818/437,407.56 = 203,837.04/x
  3. Step 3: Cross multiply
    316,818x = 437,407.56 × 203,837.04
  4. Step 4: Simplify right side
    316,818x = 89,159,862,304.02
  5. Step 5: Solve for x
    x = 89,159,862,304.02/316,818
  6. Step 6: Final answer
    x = 281,422.97

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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.