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Finding the Fourth Proportional to 207,277.60, 310,762.80 and 140,551.20

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Solution

The fourth proportional to 207,277.60, 310,762.80 and 140,551.20 is: 210,722.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,277.60 : 310,762.80 = 140,551.20 : x
  2. Step 2: Convert to fraction form
    207,277.60/310,762.80 = 140,551.20/x
  3. Step 3: Cross multiply
    207,277.60x = 310,762.80 × 140,551.20
  4. Step 4: Simplify right side
    207,277.60x = 43,678,084,455.36
  5. Step 5: Solve for x
    x = 43,678,084,455.36/207,277.60
  6. Step 6: Final answer
    x = 210,722.65

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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.