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Finding the Fourth Proportional to 223,045.77, 307,792.67 and 121,068.93

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Solution

The fourth proportional to 223,045.77, 307,792.67 and 121,068.93 is: 167,069.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,045.77 : 307,792.67 = 121,068.93 : x
  2. Step 2: Convert to fraction form
    223,045.77/307,792.67 = 121,068.93/x
  3. Step 3: Cross multiply
    223,045.77x = 307,792.67 × 121,068.93
  4. Step 4: Simplify right side
    223,045.77x = 37,264,128,613.40
  5. Step 5: Solve for x
    x = 37,264,128,613.40/223,045.77
  6. Step 6: Final answer
    x = 167,069.43

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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.