Home / 330,547.45-455,999.68-239,704.13

Finding the Fourth Proportional to 330,547.45, 455,999.68 and 239,704.13

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Solution

The fourth proportional to 330,547.45, 455,999.68 and 239,704.13 is: 330,678.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,547.45 : 455,999.68 = 239,704.13 : x
  2. Step 2: Convert to fraction form
    330,547.45/455,999.68 = 239,704.13/x
  3. Step 3: Cross multiply
    330,547.45x = 455,999.68 × 239,704.13
  4. Step 4: Simplify right side
    330,547.45x = 109,305,006,574.68
  5. Step 5: Solve for x
    x = 109,305,006,574.68/330,547.45
  6. Step 6: Final answer
    x = 330,678.72

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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.