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Finding the Fourth Proportional to 243,153.60, 335,703.60 and 157,157.52

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Solution

The fourth proportional to 243,153.60, 335,703.60 and 157,157.52 is: 216,975.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,153.60 : 335,703.60 = 157,157.52 : x
  2. Step 2: Convert to fraction form
    243,153.60/335,703.60 = 157,157.52/x
  3. Step 3: Cross multiply
    243,153.60x = 335,703.60 × 157,157.52
  4. Step 4: Simplify right side
    243,153.60x = 52,758,345,231.07
  5. Step 5: Solve for x
    x = 52,758,345,231.07/243,153.60
  6. Step 6: Final answer
    x = 216,975.38

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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.