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Finding the Fourth Proportional to 328,224.70, 492,337.16 and 103,607.86

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Solution

The fourth proportional to 328,224.70, 492,337.16 and 103,607.86 is: 155,411.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,224.70 : 492,337.16 = 103,607.86 : x
  2. Step 2: Convert to fraction form
    328,224.70/492,337.16 = 103,607.86/x
  3. Step 3: Cross multiply
    328,224.70x = 492,337.16 × 103,607.86
  4. Step 4: Simplify right side
    328,224.70x = 51,009,999,546.08
  5. Step 5: Solve for x
    x = 51,009,999,546.08/328,224.70
  6. Step 6: Final answer
    x = 155,411.82

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1.5x scale

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.