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Finding the Fourth Proportional to 406,877.21, 610,232.38 and 154,070.51

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Solution

The fourth proportional to 406,877.21, 610,232.38 and 154,070.51 is: 231,074.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,877.21 : 610,232.38 = 154,070.51 : x
  2. Step 2: Convert to fraction form
    406,877.21/610,232.38 = 154,070.51/x
  3. Step 3: Cross multiply
    406,877.21x = 610,232.38 × 154,070.51
  4. Step 4: Simplify right side
    406,877.21x = 94,018,814,005.11
  5. Step 5: Solve for x
    x = 94,018,814,005.11/406,877.21
  6. Step 6: Final answer
    x = 231,074.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.