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Finding the Fourth Proportional to 438,686.10, 605,388.75 and 237,482.10

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Solution

The fourth proportional to 438,686.10, 605,388.75 and 237,482.10 is: 327,726.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,686.10 : 605,388.75 = 237,482.10 : x
  2. Step 2: Convert to fraction form
    438,686.10/605,388.75 = 237,482.10/x
  3. Step 3: Cross multiply
    438,686.10x = 605,388.75 × 237,482.10
  4. Step 4: Simplify right side
    438,686.10x = 143,768,991,666.38
  5. Step 5: Solve for x
    x = 143,768,991,666.38/438,686.10
  6. Step 6: Final answer
    x = 327,726.34

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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.