Home / 401,320.09-553,743.75-237,946.42

Finding the Fourth Proportional to 401,320.09, 553,743.75 and 237,946.42

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Solution

The fourth proportional to 401,320.09, 553,743.75 and 237,946.42 is: 328,319.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,320.09 : 553,743.75 = 237,946.42 : x
  2. Step 2: Convert to fraction form
    401,320.09/553,743.75 = 237,946.42/x
  3. Step 3: Cross multiply
    401,320.09x = 553,743.75 × 237,946.42
  4. Step 4: Simplify right side
    401,320.09x = 131,761,342,909.88
  5. Step 5: Solve for x
    x = 131,761,342,909.88/401,320.09
  6. Step 6: Final answer
    x = 328,319.83

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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.