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Finding the Fourth Proportional to 284,530.08, 426,841.20 and 87,492

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Solution

The fourth proportional to 284,530.08, 426,841.20 and 87,492 is: 131,252.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,530.08 : 426,841.20 = 87,492 : x
  2. Step 2: Convert to fraction form
    284,530.08/426,841.20 = 87,492/x
  3. Step 3: Cross multiply
    284,530.08x = 426,841.20 × 87,492
  4. Step 4: Simplify right side
    284,530.08x = 37,345,190,270.40
  5. Step 5: Solve for x
    x = 37,345,190,270.40/284,530.08
  6. Step 6: Final answer
    x = 131,252.17

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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.