Home / 438,070.02-657,186.03-138,625.98

Finding the Fourth Proportional to 438,070.02, 657,186.03 and 138,625.98

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Solution

The fourth proportional to 438,070.02, 657,186.03 and 138,625.98 is: 207,964.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,070.02 : 657,186.03 = 138,625.98 : x
  2. Step 2: Convert to fraction form
    438,070.02/657,186.03 = 138,625.98/x
  3. Step 3: Cross multiply
    438,070.02x = 657,186.03 × 138,625.98
  4. Step 4: Simplify right side
    438,070.02x = 91,103,057,451.06
  5. Step 5: Solve for x
    x = 91,103,057,451.06/438,070.02
  6. Step 6: Final answer
    x = 207,964.60

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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.