Home / 284,784.65-392,998.50-155,723.54

Finding the Fourth Proportional to 284,784.65, 392,998.50 and 155,723.54

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Solution

The fourth proportional to 284,784.65, 392,998.50 and 155,723.54 is: 214,896.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,784.65 : 392,998.50 = 155,723.54 : x
  2. Step 2: Convert to fraction form
    284,784.65/392,998.50 = 155,723.54/x
  3. Step 3: Cross multiply
    284,784.65x = 392,998.50 × 155,723.54
  4. Step 4: Simplify right side
    284,784.65x = 61,199,115,669.70
  5. Step 5: Solve for x
    x = 61,199,115,669.70/284,784.65
  6. Step 6: Final answer
    x = 214,896.12

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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.