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Finding the Fourth Proportional to 287,334.60, 429,981.30 and 250,301.40

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Solution

The fourth proportional to 287,334.60, 429,981.30 and 250,301.40 is: 374,563.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,334.60 : 429,981.30 = 250,301.40 : x
  2. Step 2: Convert to fraction form
    287,334.60/429,981.30 = 250,301.40/x
  3. Step 3: Cross multiply
    287,334.60x = 429,981.30 × 250,301.40
  4. Step 4: Simplify right side
    287,334.60x = 107,624,921,363.82
  5. Step 5: Solve for x
    x = 107,624,921,363.82/287,334.60
  6. Step 6: Final answer
    x = 374,563.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.