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Finding the Fourth Proportional to 368,254.81, 552,378.52 and 128,368.23

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Solution

The fourth proportional to 368,254.81, 552,378.52 and 128,368.23 is: 192,551.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,254.81 : 552,378.52 = 128,368.23 : x
  2. Step 2: Convert to fraction form
    368,254.81/552,378.52 = 128,368.23/x
  3. Step 3: Cross multiply
    368,254.81x = 552,378.52 × 128,368.23
  4. Step 4: Simplify right side
    368,254.81x = 70,907,852,902.42
  5. Step 5: Solve for x
    x = 70,907,852,902.42/368,254.81
  6. Step 6: Final answer
    x = 192,551.06

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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.