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Finding the Fourth Proportional to 402,320.71, 603,594.06 and 118,018

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Solution

The fourth proportional to 402,320.71, 603,594.06 and 118,018 is: 177,060.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,320.71 : 603,594.06 = 118,018 : x
  2. Step 2: Convert to fraction form
    402,320.71/603,594.06 = 118,018/x
  3. Step 3: Cross multiply
    402,320.71x = 603,594.06 × 118,018
  4. Step 4: Simplify right side
    402,320.71x = 71,234,963,773.08
  5. Step 5: Solve for x
    x = 71,234,963,773.08/402,320.71
  6. Step 6: Final answer
    x = 177,060.15

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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.