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Finding the Fourth Proportional to 376,751.70, 565,127.55 and 310,266.90

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Solution

The fourth proportional to 376,751.70, 565,127.55 and 310,266.90 is: 465,400.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,751.70 : 565,127.55 = 310,266.90 : x
  2. Step 2: Convert to fraction form
    376,751.70/565,127.55 = 310,266.90/x
  3. Step 3: Cross multiply
    376,751.70x = 565,127.55 × 310,266.90
  4. Step 4: Simplify right side
    376,751.70x = 175,340,373,043.10
  5. Step 5: Solve for x
    x = 175,340,373,043.10/376,751.70
  6. Step 6: Final answer
    x = 465,400.35

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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.