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Finding the Fourth Proportional to 313,956.04, 433,249.86 and 178,002.40

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Solution

The fourth proportional to 313,956.04, 433,249.86 and 178,002.40 is: 245,637.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,956.04 : 433,249.86 = 178,002.40 : x
  2. Step 2: Convert to fraction form
    313,956.04/433,249.86 = 178,002.40/x
  3. Step 3: Cross multiply
    313,956.04x = 433,249.86 × 178,002.40
  4. Step 4: Simplify right side
    313,956.04x = 77,119,514,879.66
  5. Step 5: Solve for x
    x = 77,119,514,879.66/313,956.04
  6. Step 6: Final answer
    x = 245,637.94

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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.