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Finding the Fourth Proportional to 431,538.60, 595,548.90 and 240,551.40

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Solution

The fourth proportional to 431,538.60, 595,548.90 and 240,551.40 is: 331,975.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,538.60 : 595,548.90 = 240,551.40 : x
  2. Step 2: Convert to fraction form
    431,538.60/595,548.90 = 240,551.40/x
  3. Step 3: Cross multiply
    431,538.60x = 595,548.90 × 240,551.40
  4. Step 4: Simplify right side
    431,538.60x = 143,260,121,663.46
  5. Step 5: Solve for x
    x = 143,260,121,663.46/431,538.60
  6. Step 6: Final answer
    x = 331,975.22

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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.