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Finding the Fourth Proportional to 281,026.26, 387,808.02 and 153,699.12

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Solution

The fourth proportional to 281,026.26, 387,808.02 and 153,699.12 is: 212,100.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,026.26 : 387,808.02 = 153,699.12 : x
  2. Step 2: Convert to fraction form
    281,026.26/387,808.02 = 153,699.12/x
  3. Step 3: Cross multiply
    281,026.26x = 387,808.02 × 153,699.12
  4. Step 4: Simplify right side
    281,026.26x = 59,605,751,402.94
  5. Step 5: Solve for x
    x = 59,605,751,402.94/281,026.26
  6. Step 6: Final answer
    x = 212,100.29

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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.