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Finding the Fourth Proportional to 369,357.44, 554,017.68 and 129,397.05

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Solution

The fourth proportional to 369,357.44, 554,017.68 and 129,397.05 is: 194,089.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,357.44 : 554,017.68 = 129,397.05 : x
  2. Step 2: Convert to fraction form
    369,357.44/554,017.68 = 129,397.05/x
  3. Step 3: Cross multiply
    369,357.44x = 554,017.68 × 129,397.05
  4. Step 4: Simplify right side
    369,357.44x = 71,688,253,439.84
  5. Step 5: Solve for x
    x = 71,688,253,439.84/369,357.44
  6. Step 6: Final answer
    x = 194,089.10

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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.