Home / 330,529.86-455,975.64-239,686.56

Finding the Fourth Proportional to 330,529.86, 455,975.64 and 239,686.56

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Solution

The fourth proportional to 330,529.86, 455,975.64 and 239,686.56 is: 330,654.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,529.86 : 455,975.64 = 239,686.56 : x
  2. Step 2: Convert to fraction form
    330,529.86/455,975.64 = 239,686.56/x
  3. Step 3: Cross multiply
    330,529.86x = 455,975.64 × 239,686.56
  4. Step 4: Simplify right side
    330,529.86x = 109,291,232,595.40
  5. Step 5: Solve for x
    x = 109,291,232,595.40/330,529.86
  6. Step 6: Final answer
    x = 330,654.64

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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.