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Finding the Fourth Proportional to 370,161.16, 554,398.70 and 289,697.20

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Solution

The fourth proportional to 370,161.16, 554,398.70 and 289,697.20 is: 433,886.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,161.16 : 554,398.70 = 289,697.20 : x
  2. Step 2: Convert to fraction form
    370,161.16/554,398.70 = 289,697.20/x
  3. Step 3: Cross multiply
    370,161.16x = 554,398.70 × 289,697.20
  4. Step 4: Simplify right side
    370,161.16x = 160,607,751,073.64
  5. Step 5: Solve for x
    x = 160,607,751,073.64/370,161.16
  6. Step 6: Final answer
    x = 433,886.02

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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.