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Finding the Fourth Proportional to 228,509.82, 315,173.61 and 147,875.13

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Solution

The fourth proportional to 228,509.82, 315,173.61 and 147,875.13 is: 203,957.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,509.82 : 315,173.61 = 147,875.13 : x
  2. Step 2: Convert to fraction form
    228,509.82/315,173.61 = 147,875.13/x
  3. Step 3: Cross multiply
    228,509.82x = 315,173.61 × 147,875.13
  4. Step 4: Simplify right side
    228,509.82x = 46,606,338,551.32
  5. Step 5: Solve for x
    x = 46,606,338,551.32/228,509.82
  6. Step 6: Final answer
    x = 203,957.71

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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.