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Finding the Fourth Proportional to 316,280.60, 436,477.71 and 173,040.71

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Solution

The fourth proportional to 316,280.60, 436,477.71 and 173,040.71 is: 238,801.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,280.60 : 436,477.71 = 173,040.71 : x
  2. Step 2: Convert to fraction form
    316,280.60/436,477.71 = 173,040.71/x
  3. Step 3: Cross multiply
    316,280.60x = 436,477.71 × 173,040.71
  4. Step 4: Simplify right side
    316,280.60x = 75,528,412,837.57
  5. Step 5: Solve for x
    x = 75,528,412,837.57/316,280.60
  6. Step 6: Final answer
    x = 238,801.91

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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.