Home / 228,627.04-315,516.63-137,981.56

Finding the Fourth Proportional to 228,627.04, 315,516.63 and 137,981.56

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Solution

The fourth proportional to 228,627.04, 315,516.63 and 137,981.56 is: 190,421.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,627.04 : 315,516.63 = 137,981.56 : x
  2. Step 2: Convert to fraction form
    228,627.04/315,516.63 = 137,981.56/x
  3. Step 3: Cross multiply
    228,627.04x = 315,516.63 × 137,981.56
  4. Step 4: Simplify right side
    228,627.04x = 43,535,476,813.34
  5. Step 5: Solve for x
    x = 43,535,476,813.34/228,627.04
  6. Step 6: Final answer
    x = 190,421.38

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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.