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Finding the Fourth Proportional to 230,898.48, 318,549.96 and 155,497.20

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Solution

The fourth proportional to 230,898.48, 318,549.96 and 155,497.20 is: 214,525.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,898.48 : 318,549.96 = 155,497.20 : x
  2. Step 2: Convert to fraction form
    230,898.48/318,549.96 = 155,497.20/x
  3. Step 3: Cross multiply
    230,898.48x = 318,549.96 × 155,497.20
  4. Step 4: Simplify right side
    230,898.48x = 49,533,626,840.11
  5. Step 5: Solve for x
    x = 49,533,626,840.11/230,898.48
  6. Step 6: Final answer
    x = 214,525.56

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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.