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Finding the Fourth Proportional to 437,855.90, 657,002.55 and 248,461.70

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Solution

The fourth proportional to 437,855.90, 657,002.55 and 248,461.70 is: 372,816.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,855.90 : 657,002.55 = 248,461.70 : x
  2. Step 2: Convert to fraction form
    437,855.90/657,002.55 = 248,461.70/x
  3. Step 3: Cross multiply
    437,855.90x = 657,002.55 × 248,461.70
  4. Step 4: Simplify right side
    437,855.90x = 163,239,970,477.34
  5. Step 5: Solve for x
    x = 163,239,970,477.34/437,855.90
  6. Step 6: Final answer
    x = 372,816.65

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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.