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Finding the Fourth Proportional to 207,435.60, 310,368.24 and 123,240.96

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Solution

The fourth proportional to 207,435.60, 310,368.24 and 123,240.96 is: 184,394.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,435.60 : 310,368.24 = 123,240.96 : x
  2. Step 2: Convert to fraction form
    207,435.60/310,368.24 = 123,240.96/x
  3. Step 3: Cross multiply
    207,435.60x = 310,368.24 × 123,240.96
  4. Step 4: Simplify right side
    207,435.60x = 38,250,079,851.11
  5. Step 5: Solve for x
    x = 38,250,079,851.11/207,435.60
  6. Step 6: Final answer
    x = 184,394.96

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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.