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Finding the Fourth Proportional to 403,612.37, 557,009.01 and 231,529.07

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Solution

The fourth proportional to 403,612.37, 557,009.01 and 231,529.07 is: 319,523.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,612.37 : 557,009.01 = 231,529.07 : x
  2. Step 2: Convert to fraction form
    403,612.37/557,009.01 = 231,529.07/x
  3. Step 3: Cross multiply
    403,612.37x = 557,009.01 × 231,529.07
  4. Step 4: Simplify right side
    403,612.37x = 128,963,778,066.92
  5. Step 5: Solve for x
    x = 128,963,778,066.92/403,612.37
  6. Step 6: Final answer
    x = 319,523.85

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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.