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Finding the Fourth Proportional to 455,152.60, 683,117.70 and 202,821.40

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Solution

The fourth proportional to 455,152.60, 683,117.70 and 202,821.40 is: 304,405.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,152.60 : 683,117.70 = 202,821.40 : x
  2. Step 2: Convert to fraction form
    455,152.60/683,117.70 = 202,821.40/x
  3. Step 3: Cross multiply
    455,152.60x = 683,117.70 × 202,821.40
  4. Step 4: Simplify right side
    455,152.60x = 138,550,888,278.78
  5. Step 5: Solve for x
    x = 138,550,888,278.78/455,152.60
  6. Step 6: Final answer
    x = 304,405.35

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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.