Home / 284,301.81-390,275.03-281,645.01

Finding the Fourth Proportional to 284,301.81, 390,275.03 and 281,645.01

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Solution

The fourth proportional to 284,301.81, 390,275.03 and 281,645.01 is: 386,627.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,301.81 : 390,275.03 = 281,645.01 : x
  2. Step 2: Convert to fraction form
    284,301.81/390,275.03 = 281,645.01/x
  3. Step 3: Cross multiply
    284,301.81x = 390,275.03 × 281,645.01
  4. Step 4: Simplify right side
    284,301.81x = 109,919,015,431.21
  5. Step 5: Solve for x
    x = 109,919,015,431.21/284,301.81
  6. Step 6: Final answer
    x = 386,627.91

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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.