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Finding the Fourth Proportional to 404,221.32, 557,864.84 and 302,069.40

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Solution

The fourth proportional to 404,221.32, 557,864.84 and 302,069.40 is: 416,885.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,221.32 : 557,864.84 = 302,069.40 : x
  2. Step 2: Convert to fraction form
    404,221.32/557,864.84 = 302,069.40/x
  3. Step 3: Cross multiply
    404,221.32x = 557,864.84 × 302,069.40
  4. Step 4: Simplify right side
    404,221.32x = 168,513,897,499.90
  5. Step 5: Solve for x
    x = 168,513,897,499.90/404,221.32
  6. Step 6: Final answer
    x = 416,885.23

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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.