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Finding the Fourth Proportional to 303,868.60, 455,802.90 and 146,404.60

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Solution

The fourth proportional to 303,868.60, 455,802.90 and 146,404.60 is: 219,606.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,868.60 : 455,802.90 = 146,404.60 : x
  2. Step 2: Convert to fraction form
    303,868.60/455,802.90 = 146,404.60/x
  3. Step 3: Cross multiply
    303,868.60x = 455,802.90 × 146,404.60
  4. Step 4: Simplify right side
    303,868.60x = 66,731,641,253.34
  5. Step 5: Solve for x
    x = 66,731,641,253.34/303,868.60
  6. Step 6: Final answer
    x = 219,606.90

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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.