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Finding the Fourth Proportional to 277,333.93, 382,720.90 and 156,500.81

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Solution

The fourth proportional to 277,333.93, 382,720.90 and 156,500.81 is: 215,971.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,333.93 : 382,720.90 = 156,500.81 : x
  2. Step 2: Convert to fraction form
    277,333.93/382,720.90 = 156,500.81/x
  3. Step 3: Cross multiply
    277,333.93x = 382,720.90 × 156,500.81
  4. Step 4: Simplify right side
    277,333.93x = 59,896,130,277.71
  5. Step 5: Solve for x
    x = 59,896,130,277.71/277,333.93
  6. Step 6: Final answer
    x = 215,971.16

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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.