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Finding the Fourth Proportional to 455,518.40, 683,277.60 and 245,566.40

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Solution

The fourth proportional to 455,518.40, 683,277.60 and 245,566.40 is: 368,349.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,518.40 : 683,277.60 = 245,566.40 : x
  2. Step 2: Convert to fraction form
    455,518.40/683,277.60 = 245,566.40/x
  3. Step 3: Cross multiply
    455,518.40x = 683,277.60 × 245,566.40
  4. Step 4: Simplify right side
    455,518.40x = 167,790,020,432.64
  5. Step 5: Solve for x
    x = 167,790,020,432.64/455,518.40
  6. Step 6: Final answer
    x = 368,349.60

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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.