Home / 217,890.60-326,835.90-77,598.60

Finding the Fourth Proportional to 217,890.60, 326,835.90 and 77,598.60

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Solution

The fourth proportional to 217,890.60, 326,835.90 and 77,598.60 is: 116,397.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,890.60 : 326,835.90 = 77,598.60 : x
  2. Step 2: Convert to fraction form
    217,890.60/326,835.90 = 77,598.60/x
  3. Step 3: Cross multiply
    217,890.60x = 326,835.90 × 77,598.60
  4. Step 4: Simplify right side
    217,890.60x = 25,362,008,269.74
  5. Step 5: Solve for x
    x = 25,362,008,269.74/217,890.60
  6. Step 6: Final answer
    x = 116,397.90

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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.