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Finding the Fourth Proportional to 369,738.07, 554,607.10 and 120,420.07

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Solution

The fourth proportional to 369,738.07, 554,607.10 and 120,420.07 is: 180,630.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,738.07 : 554,607.10 = 120,420.07 : x
  2. Step 2: Convert to fraction form
    369,738.07/554,607.10 = 120,420.07/x
  3. Step 3: Cross multiply
    369,738.07x = 554,607.10 × 120,420.07
  4. Step 4: Simplify right side
    369,738.07x = 66,785,825,804.50
  5. Step 5: Solve for x
    x = 66,785,825,804.50/369,738.07
  6. Step 6: Final answer
    x = 180,630.10

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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.