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Finding the Fourth Proportional to 319,847.70, 478,730.01 and 235,574.70

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Solution

The fourth proportional to 319,847.70, 478,730.01 and 235,574.70 is: 352,594.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,847.70 : 478,730.01 = 235,574.70 : x
  2. Step 2: Convert to fraction form
    319,847.70/478,730.01 = 235,574.70/x
  3. Step 3: Cross multiply
    319,847.70x = 478,730.01 × 235,574.70
  4. Step 4: Simplify right side
    319,847.70x = 112,776,678,486.75
  5. Step 5: Solve for x
    x = 112,776,678,486.75/319,847.70
  6. Step 6: Final answer
    x = 352,594.93

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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.