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Finding the Fourth Proportional to 228,607.65, 315,447.31 and 126,607.93

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Solution

The fourth proportional to 228,607.65, 315,447.31 and 126,607.93 is: 174,701.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,607.65 : 315,447.31 = 126,607.93 : x
  2. Step 2: Convert to fraction form
    228,607.65/315,447.31 = 126,607.93/x
  3. Step 3: Cross multiply
    228,607.65x = 315,447.31 × 126,607.93
  4. Step 4: Simplify right side
    228,607.65x = 39,938,130,312.81
  5. Step 5: Solve for x
    x = 39,938,130,312.81/228,607.65
  6. Step 6: Final answer
    x = 174,701.64

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