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Finding the Fourth Proportional to 303,396.80, 455,095.20 and 185,298.80

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Solution

The fourth proportional to 303,396.80, 455,095.20 and 185,298.80 is: 277,948.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,396.80 : 455,095.20 = 185,298.80 : x
  2. Step 2: Convert to fraction form
    303,396.80/455,095.20 = 185,298.80/x
  3. Step 3: Cross multiply
    303,396.80x = 455,095.20 × 185,298.80
  4. Step 4: Simplify right side
    303,396.80x = 84,328,594,445.76
  5. Step 5: Solve for x
    x = 84,328,594,445.76/303,396.80
  6. Step 6: Final answer
    x = 277,948.20

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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.