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Finding the Fourth Proportional to 243,509.01, 336,041.46 and 136,079.01

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Solution

The fourth proportional to 243,509.01, 336,041.46 and 136,079.01 is: 187,788.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,509.01 : 336,041.46 = 136,079.01 : x
  2. Step 2: Convert to fraction form
    243,509.01/336,041.46 = 136,079.01/x
  3. Step 3: Cross multiply
    243,509.01x = 336,041.46 × 136,079.01
  4. Step 4: Simplify right side
    243,509.01x = 45,728,189,195.75
  5. Step 5: Solve for x
    x = 45,728,189,195.75/243,509.01
  6. Step 6: Final answer
    x = 187,788.49

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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.