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Finding the Fourth Proportional to 314,466.60, 471,699.90 and 209,490.60

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Solution

The fourth proportional to 314,466.60, 471,699.90 and 209,490.60 is: 314,235.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,466.60 : 471,699.90 = 209,490.60 : x
  2. Step 2: Convert to fraction form
    314,466.60/471,699.90 = 209,490.60/x
  3. Step 3: Cross multiply
    314,466.60x = 471,699.90 × 209,490.60
  4. Step 4: Simplify right side
    314,466.60x = 98,816,695,070.94
  5. Step 5: Solve for x
    x = 98,816,695,070.94/314,466.60
  6. Step 6: Final answer
    x = 314,235.90

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1.5x scale

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.