Home / 284,738.07-392,946.74-157,421.87

Finding the Fourth Proportional to 284,738.07, 392,946.74 and 157,421.87

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Solution

The fourth proportional to 284,738.07, 392,946.74 and 157,421.87 is: 217,246.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,738.07 : 392,946.74 = 157,421.87 : x
  2. Step 2: Convert to fraction form
    284,738.07/392,946.74 = 157,421.87/x
  3. Step 3: Cross multiply
    284,738.07x = 392,946.74 × 157,421.87
  4. Step 4: Simplify right side
    284,738.07x = 61,858,407,869.36
  5. Step 5: Solve for x
    x = 61,858,407,869.36/284,738.07
  6. Step 6: Final answer
    x = 217,246.71

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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.