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Finding the Fourth Proportional to 438,495, 605,123.10 and 237,291

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Solution

The fourth proportional to 438,495, 605,123.10 and 237,291 is: 327,461.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,495 : 605,123.10 = 237,291 : x
  2. Step 2: Convert to fraction form
    438,495/605,123.10 = 237,291/x
  3. Step 3: Cross multiply
    438,495x = 605,123.10 × 237,291
  4. Step 4: Simplify right side
    438,495x = 143,590,265,522.10
  5. Step 5: Solve for x
    x = 143,590,265,522.10/438,495
  6. Step 6: Final answer
    x = 327,461.58

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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.