Home / 284,302.06-390,275.38-281,645.26

Finding the Fourth Proportional to 284,302.06, 390,275.38 and 281,645.26

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Solution

The fourth proportional to 284,302.06, 390,275.38 and 281,645.26 is: 386,628.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,302.06 : 390,275.38 = 281,645.26 : x
  2. Step 2: Convert to fraction form
    284,302.06/390,275.38 = 281,645.26/x
  3. Step 3: Cross multiply
    284,302.06x = 390,275.38 × 281,645.26
  4. Step 4: Simplify right side
    284,302.06x = 109,919,210,871.70
  5. Step 5: Solve for x
    x = 109,919,210,871.70/284,302.06
  6. Step 6: Final answer
    x = 386,628.26

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.