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Finding the Fourth Proportional to 438,478.72, 605,102.46 and 237,274.72

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Solution

The fourth proportional to 438,478.72, 605,102.46 and 237,274.72 is: 327,440.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,478.72 : 605,102.46 = 237,274.72 : x
  2. Step 2: Convert to fraction form
    438,478.72/605,102.46 = 237,274.72/x
  3. Step 3: Cross multiply
    438,478.72x = 605,102.46 × 237,274.72
  4. Step 4: Simplify right side
    438,478.72x = 143,575,516,767.81
  5. Step 5: Solve for x
    x = 143,575,516,767.81/438,478.72
  6. Step 6: Final answer
    x = 327,440.10

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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.