Home / 284,290.56-390,259.62-281,633.76

Finding the Fourth Proportional to 284,290.56, 390,259.62 and 281,633.76

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Solution

The fourth proportional to 284,290.56, 390,259.62 and 281,633.76 is: 386,612.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,290.56 : 390,259.62 = 281,633.76 : x
  2. Step 2: Convert to fraction form
    284,290.56/390,259.62 = 281,633.76/x
  3. Step 3: Cross multiply
    284,290.56x = 390,259.62 × 281,633.76
  4. Step 4: Simplify right side
    284,290.56x = 109,910,284,156.77
  5. Step 5: Solve for x
    x = 109,910,284,156.77/284,290.56
  6. Step 6: Final answer
    x = 386,612.50

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1.5x scale

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.