Home / 284,756.25-392,971.83-157,440.06

Finding the Fourth Proportional to 284,756.25, 392,971.83 and 157,440.06

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Solution

The fourth proportional to 284,756.25, 392,971.83 and 157,440.06 is: 217,271.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,756.25 : 392,971.83 = 157,440.06 : x
  2. Step 2: Convert to fraction form
    284,756.25/392,971.83 = 157,440.06/x
  3. Step 3: Cross multiply
    284,756.25x = 392,971.83 × 157,440.06
  4. Step 4: Simplify right side
    284,756.25x = 61,869,508,493.51
  5. Step 5: Solve for x
    x = 61,869,508,493.51/284,756.25
  6. Step 6: Final answer
    x = 217,271.82

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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.