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Finding the Fourth Proportional to 280,385.04, 418,431.84 and 250,466.88

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Solution

The fourth proportional to 280,385.04, 418,431.84 and 250,466.88 is: 373,783.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,385.04 : 418,431.84 = 250,466.88 : x
  2. Step 2: Convert to fraction form
    280,385.04/418,431.84 = 250,466.88/x
  3. Step 3: Cross multiply
    280,385.04x = 418,431.84 × 250,466.88
  4. Step 4: Simplify right side
    280,385.04x = 104,803,317,457.46
  5. Step 5: Solve for x
    x = 104,803,317,457.46/280,385.04
  6. Step 6: Final answer
    x = 373,783.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.