Home / 284,128.84-392,095.68-155,067.16

Finding the Fourth Proportional to 284,128.84, 392,095.68 and 155,067.16

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Solution

The fourth proportional to 284,128.84, 392,095.68 and 155,067.16 is: 213,991.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,128.84 : 392,095.68 = 155,067.16 : x
  2. Step 2: Convert to fraction form
    284,128.84/392,095.68 = 155,067.16/x
  3. Step 3: Cross multiply
    284,128.84x = 392,095.68 × 155,067.16
  4. Step 4: Simplify right side
    284,128.84x = 60,801,163,545.87
  5. Step 5: Solve for x
    x = 60,801,163,545.87/284,128.84
  6. Step 6: Final answer
    x = 213,991.52

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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.