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Finding the Fourth Proportional to 228,135.60, 314,829.12 and 126,155.76

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Solution

The fourth proportional to 228,135.60, 314,829.12 and 126,155.76 is: 174,096.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,135.60 : 314,829.12 = 126,155.76 : x
  2. Step 2: Convert to fraction form
    228,135.60/314,829.12 = 126,155.76/x
  3. Step 3: Cross multiply
    228,135.60x = 314,829.12 × 126,155.76
  4. Step 4: Simplify right side
    228,135.60x = 39,717,506,903.73
  5. Step 5: Solve for x
    x = 39,717,506,903.73/228,135.60
  6. Step 6: Final answer
    x = 174,096.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.