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Finding the Fourth Proportional to 369,367.34, 554,009.46 and 99,515.40

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Solution

The fourth proportional to 369,367.34, 554,009.46 and 99,515.40 is: 149,261.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,367.34 : 554,009.46 = 99,515.40 : x
  2. Step 2: Convert to fraction form
    369,367.34/554,009.46 = 99,515.40/x
  3. Step 3: Cross multiply
    369,367.34x = 554,009.46 × 99,515.40
  4. Step 4: Simplify right side
    369,367.34x = 55,132,473,015.68
  5. Step 5: Solve for x
    x = 55,132,473,015.68/369,367.34
  6. Step 6: Final answer
    x = 149,261.91

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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.