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Finding the Fourth Proportional to 201,316.32, 277,823.67 and 115,290.68

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Solution

The fourth proportional to 201,316.32, 277,823.67 and 115,290.68 is: 159,105.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,316.32 : 277,823.67 = 115,290.68 : x
  2. Step 2: Convert to fraction form
    201,316.32/277,823.67 = 115,290.68/x
  3. Step 3: Cross multiply
    201,316.32x = 277,823.67 × 115,290.68
  4. Step 4: Simplify right side
    201,316.32x = 32,030,478,445.28
  5. Step 5: Solve for x
    x = 32,030,478,445.28/201,316.32
  6. Step 6: Final answer
    x = 159,105.23

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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.