Home / 438,076.02-657,195.03-138,631.98

Finding the Fourth Proportional to 438,076.02, 657,195.03 and 138,631.98

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Solution

The fourth proportional to 438,076.02, 657,195.03 and 138,631.98 is: 207,973.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,076.02 : 657,195.03 = 138,631.98 : x
  2. Step 2: Convert to fraction form
    438,076.02/657,195.03 = 138,631.98/x
  3. Step 3: Cross multiply
    438,076.02x = 657,195.03 × 138,631.98
  4. Step 4: Simplify right side
    438,076.02x = 91,108,248,255.06
  5. Step 5: Solve for x
    x = 91,108,248,255.06/438,076.02
  6. Step 6: Final answer
    x = 207,973.60

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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.