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Finding the Fourth Proportional to 228,637.79, 315,572.64 and 152,160.12

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Solution

The fourth proportional to 228,637.79, 315,572.64 and 152,160.12 is: 210,015.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,637.79 : 315,572.64 = 152,160.12 : x
  2. Step 2: Convert to fraction form
    228,637.79/315,572.64 = 152,160.12/x
  3. Step 3: Cross multiply
    228,637.79x = 315,572.64 × 152,160.12
  4. Step 4: Simplify right side
    228,637.79x = 48,017,569,193.25
  5. Step 5: Solve for x
    x = 48,017,569,193.25/228,637.79
  6. Step 6: Final answer
    x = 210,015.90

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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.