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Finding the Fourth Proportional to 315,328.05, 473,324.94 and 147,010.71

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Solution

The fourth proportional to 315,328.05, 473,324.94 and 147,010.71 is: 220,671.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,328.05 : 473,324.94 = 147,010.71 : x
  2. Step 2: Convert to fraction form
    315,328.05/473,324.94 = 147,010.71/x
  3. Step 3: Cross multiply
    315,328.05x = 473,324.94 × 147,010.71
  4. Step 4: Simplify right side
    315,328.05x = 69,583,835,490.11
  5. Step 5: Solve for x
    x = 69,583,835,490.11/315,328.05
  6. Step 6: Final answer
    x = 220,671.25

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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.