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Finding the Fourth Proportional to 370,153.31, 555,451.16 and 340,038.32

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Solution

The fourth proportional to 370,153.31, 555,451.16 and 340,038.32 is: 510,260.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,153.31 : 555,451.16 = 340,038.32 : x
  2. Step 2: Convert to fraction form
    370,153.31/555,451.16 = 340,038.32/x
  3. Step 3: Cross multiply
    370,153.31x = 555,451.16 × 340,038.32
  4. Step 4: Simplify right side
    370,153.31x = 188,874,678,749.92
  5. Step 5: Solve for x
    x = 188,874,678,749.92/370,153.31
  6. Step 6: Final answer
    x = 510,260.68

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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.