Home / 284,665.08-392,839.38-155,603.76

Finding the Fourth Proportional to 284,665.08, 392,839.38 and 155,603.76

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Solution

The fourth proportional to 284,665.08, 392,839.38 and 155,603.76 is: 214,734.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,665.08 : 392,839.38 = 155,603.76 : x
  2. Step 2: Convert to fraction form
    284,665.08/392,839.38 = 155,603.76/x
  3. Step 3: Cross multiply
    284,665.08x = 392,839.38 × 155,603.76
  4. Step 4: Simplify right side
    284,665.08x = 61,127,284,604.07
  5. Step 5: Solve for x
    x = 61,127,284,604.07/284,665.08
  6. Step 6: Final answer
    x = 214,734.05

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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.