Home / 331,616.81-457,306.09-210,547.91

Finding the Fourth Proportional to 331,616.81, 457,306.09 and 210,547.91

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Solution

The fourth proportional to 331,616.81, 457,306.09 and 210,547.91 is: 290,349.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,616.81 : 457,306.09 = 210,547.91 : x
  2. Step 2: Convert to fraction form
    331,616.81/457,306.09 = 210,547.91/x
  3. Step 3: Cross multiply
    331,616.81x = 457,306.09 × 210,547.91
  4. Step 4: Simplify right side
    331,616.81x = 96,284,838,140.50
  5. Step 5: Solve for x
    x = 96,284,838,140.50/331,616.81
  6. Step 6: Final answer
    x = 290,349.69

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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.