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Finding the Fourth Proportional to 230,555.63, 318,223.81 and 157,089.60

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Solution

The fourth proportional to 230,555.63, 318,223.81 and 157,089.60 is: 216,822.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,555.63 : 318,223.81 = 157,089.60 : x
  2. Step 2: Convert to fraction form
    230,555.63/318,223.81 = 157,089.60/x
  3. Step 3: Cross multiply
    230,555.63x = 318,223.81 × 157,089.60
  4. Step 4: Simplify right side
    230,555.63x = 49,989,650,542.80
  5. Step 5: Solve for x
    x = 49,989,650,542.80/230,555.63
  6. Step 6: Final answer
    x = 216,822.51

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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.