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Finding the Fourth Proportional to 217,345.60, 304,491.20 and 217,345.60

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Solution

The fourth proportional to 217,345.60, 304,491.20 and 217,345.60 is: 304,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,345.60 : 304,491.20 = 217,345.60 : x
  2. Step 2: Convert to fraction form
    217,345.60/304,491.20 = 217,345.60/x
  3. Step 3: Cross multiply
    217,345.60x = 304,491.20 × 217,345.60
  4. Step 4: Simplify right side
    217,345.60x = 66,179,822,558.72
  5. Step 5: Solve for x
    x = 66,179,822,558.72/217,345.60
  6. Step 6: Final answer
    x = 304,491.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.