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Finding the Fourth Proportional to 178,088.70, 266,709 and 103,050.72

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Solution

The fourth proportional to 178,088.70, 266,709 and 103,050.72 is: 154,330.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,088.70 : 266,709 = 103,050.72 : x
  2. Step 2: Convert to fraction form
    178,088.70/266,709 = 103,050.72/x
  3. Step 3: Cross multiply
    178,088.70x = 266,709 × 103,050.72
  4. Step 4: Simplify right side
    178,088.70x = 27,484,554,480.48
  5. Step 5: Solve for x
    x = 27,484,554,480.48/178,088.70
  6. Step 6: Final answer
    x = 154,330.70

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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.