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Finding the Fourth Proportional to 207,019.20, 310,307.32 and 107,078.77

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Solution

The fourth proportional to 207,019.20, 310,307.32 and 107,078.77 is: 160,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,019.20 : 310,307.32 = 107,078.77 : x
  2. Step 2: Convert to fraction form
    207,019.20/310,307.32 = 107,078.77/x
  3. Step 3: Cross multiply
    207,019.20x = 310,307.32 × 107,078.77
  4. Step 4: Simplify right side
    207,019.20x = 33,227,326,147.60
  5. Step 5: Solve for x
    x = 33,227,326,147.60/207,019.20
  6. Step 6: Final answer
    x = 160,503.60

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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.