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Finding the Fourth Proportional to 228,957.01, 315,686.09 and 148,355.12

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Solution

The fourth proportional to 228,957.01, 315,686.09 and 148,355.12 is: 204,552.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,957.01 : 315,686.09 = 148,355.12 : x
  2. Step 2: Convert to fraction form
    228,957.01/315,686.09 = 148,355.12/x
  3. Step 3: Cross multiply
    228,957.01x = 315,686.09 × 148,355.12
  4. Step 4: Simplify right side
    228,957.01x = 46,833,648,924.38
  5. Step 5: Solve for x
    x = 46,833,648,924.38/228,957.01
  6. Step 6: Final answer
    x = 204,552.15

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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.